{"id":1067,"date":"2021-10-08T13:09:24","date_gmt":"2021-10-08T13:09:24","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=1067"},"modified":"2022-02-16T19:18:18","modified_gmt":"2022-02-16T12:18:18","slug":"goc-o-tam-so-do-cung-he-thong-kien-thuc-cung-toppy","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/goc-o-tam-so-do-cung-he-thong-kien-thuc-cung-toppy\/","title":{"rendered":"G\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung \u2013 H\u1ec7 th\u1ed1ng ki\u1ebfn th\u1ee9c"},"content":{"rendered":"\n<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"To\u00e1n h\u1ecdc 9 - B\u00e0i 1 - G\u00f3c \u1edf t\u00e2m - S\u1ed1 \u0111o cung - C\u00f4 Ng\u00f4 Ho\u00e0ng Ng\u1ecdc H\u00e0 (HAY NH\u1ea4T)\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/z3YYYDSfHMU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption>To\u00e1n h\u1ecdc 9 &#8211; B\u00e0i 1 &#8211; G\u00f3c \u1edf t\u00e2m &#8211; S\u1ed1 \u0111o cung<\/figcaption><\/figure>\n\n\n\n<p>G\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung l\u00e0 g\u00ec? C\u00e1ch t\u00ednh s\u1ed1 \u0111o cung nh\u01b0 th\u1ebf n\u00e0o? So s\u00e1nh 2 cung. \u0110\u00f3 l\u00e0 nh\u1eefng l\u00fd thuy\u1ebft c\u00f3 trong b\u00e0i gi\u1ea3ng g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung. \u0110\u00e2y l\u00e0 ph\u1ea7n ki\u1ebfn th\u1ee9c kh\u00e1 quan tr\u1ecdng. V\u1eady h\u00e3y c\u00f9ng Vietlearn t\u1ed5ng h\u1ee3p v\u00e0 ghi nh\u1edb trong b\u00e0i vi\u1ebft sau \u0111\u00e2y \u0111\u1ec3 h\u1ecdc To\u00e1n l\u1edbp 9 t\u1ed1t h\u01a1n.<\/p>\n\n\n\n<p>T\u00ecm hi\u1ec3u v\u1ec1 g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<\/p>\n\n\n\n<p>G\u00f3c \u1edf t\u00e2m<\/p>\n\n\n\n<p>G\u00f3c \u1edf t\u00e2m l\u00e0 g\u00f3c c\u00f3 \u0111\u1ec9nh tr\u00f9ng v\u1edbi t\u00e2m c\u1ee7a \u0111\u01b0\u1eddng tr\u00f2n.<\/p>\n\n\n\n<p>Hai c\u1ea1nh c\u1ee7a g\u00f3c \u1edf t\u00e2m s\u1ebd c\u1eaft \u0111\u01b0\u1eddng tr\u00f2n t\u1ea1i hai \u0111i\u1ec3m. Nh\u01b0 v\u1eady ch\u00fang s\u1ebd chia \u0111\u01b0\u1eddng tr\u00f2n th\u00e0nh hai cung.<\/p>\n\n\n\n<p>V\u1edbi c\u00e1c g\u00f3c \u03b1 (0 &lt; \u03b1 &lt; 180\u00b0) th\u00ec cung n\u1eb1m b\u00ean trong g\u00f3c \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 cung nh\u1ecf.<\/p>\n\n\n\n<p>Cung n\u1eb1m b\u00ean ngo\u00e0i g\u00f3c \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 cung l\u1edbn.<\/p>\n\n\n\n<p>Cung AB \u0111\u01b0\u1ee3c k\u00ed hi\u1ec7u l\u00e0 .<\/p>\n\n\n\n<p>Cung l\u00e0 cung nh\u1ecf, cung l\u00e0 cung l\u1edbn.<\/p>\n\n\n\n<p>V\u1edbi s\u1ed1 \u0111o g\u00f3c \u1edf t\u00e2m \u03b1 = 180\u00b0 th\u00ec m\u1ed7i cung l\u00e0 m\u1ed9t n\u1eeda \u0111\u01b0\u1eddng tr\u00f2n.<\/p>\n\n\n\n<p>Cung n\u1eb1m b\u00ean trong g\u00f3c g\u1ecdi l\u00e0 cung b\u1ecb ch\u1eafn.<\/p>\n\n\n\n<p>Cung l\u00e0 cung b\u1ecb ch\u1eafn b\u1edfi g\u00f3c AOB hay g\u00f3c AOB ch\u1eafn cung nh\u1ecf .<\/p>\n\n\n\n<p>S\u1ed1 \u0111o cung<\/p>\n\n\n\n<p>S\u1ed1 \u0111o c\u1ee7a cung nh\u1ecf b\u1eb1ng s\u1ed1 \u0111o g\u00f3c \u1edf t\u00e2m ch\u1eafn cung \u0111\u00f3.<\/p>\n\n\n\n<p>S\u1ed1 \u0111o c\u1ee7a cung l\u1edbn b\u1eb1ng hi\u1ec7u gi\u1eefa 360\u00b0 v\u00e0 s\u1ed1 \u0111o cung nh\u1ecf (c\u00f3 chung hai m\u00fat v\u1edbi cung l\u1edbn).<\/p>\n\n\n\n<p>S\u1ed1 \u0111o c\u1ee7a n\u1eeda \u0111\u01b0\u1eddng tr\u00f2n b\u1eb1ng 180\u00b0<\/p>\n\n\n\n<p>K\u00ed hi\u1ec7u s\u1ed1 \u0111o c\u1ee7a cung AB l\u00e0 s\u0111 .<\/p>\n\n\n\n<p>V\u00ed d\u1ee5: Cho g\u00f3c \u1edf t\u00e2m \u03b1 = 100\u00b0 l\u00e0 g\u00f3c \u1edf t\u00e2m O nh\u01b0 h\u00ecnh v\u1ebd. T\u00ednh s\u1ed1 \u0111o cung l\u1edbn.<\/p>\n\n\n\n<p>Ch\u00fa \u00fd:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>+ Cung nh\u1ecf c\u00f3 s\u1ed1 \u0111o nh\u1ecf h\u01a1n 180\u00b0\n\n+ Cung l\u1edbn c\u00f3 s\u1ed1 \u0111o l\u1edbn h\u01a1n 180\u00b0\n\n+ Khi hai m\u00fat c\u1ee7a cung tr\u00f9ng nhau, ta c\u00f3 \u201ccung kh\u00f4ng\u201d v\u1edbi s\u1ed1 \u0111o l\u00e0 0\u00b0 v\u00e0 c\u1ea3 \u0111\u01b0\u1eddng tr\u00f2n c\u00f3 s\u1ed1 \u0111o l\u00e0 360\u00b0<\/code><\/pre>\n\n\n\n<p>So s\u00e1nh hai cung<\/p>\n\n\n\n<p>Hai cung \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u1eb1ng nhau n\u1ebfu ch\u00fang c\u00f3 c\u00f9ng s\u1ed1 \u0111o b\u1eb1ng nhau.<\/p>\n\n\n\n<p>Trong hai cung, cung n\u00e0o c\u00f3 s\u1ed1 \u0111o l\u1edbn h\u01a1n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 cung l\u1edbn h\u01a1n.<\/p>\n\n\n\n<p>K\u00ed hi\u1ec7u:<\/p>\n\n\n\n<p>Khi n\u00e0o<\/p>\n\n\n\n<p>N\u1ebfu C l\u00e0 m\u1ed9t \u0111i\u1ec3m n\u1eb1m tr\u00ean cung AB th\u00ec<\/p>\n\n\n\n<p>To\u00e1n 9 b\u00e0i g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<\/p>\n\n\n\n<p>C\u00e2u 1: Cho h\u00ecnh v\u1ebd sau:<\/p>\n\n\n\n<p>T\u00ednh s\u1ed1 \u0111o cung nh\u1ecf AB, t\u1eeb \u0111\u00f3 so s\u00e1nh c\u1ea1nh AC v\u00e0 AD<\/p>\n\n\n\n<p>C\u00e1ch gi\u1ea3i:<\/p>\n\n\n\n<p>C\u00e2u 2: D\u1ef1a v\u00e0o h\u00ecnh d\u01b0\u1edbi, h\u00ecnh t\u00ednh s\u1ed1 \u0111o c\u1ee7a cung nh\u1ecf AB, bi\u1ebft r\u1eb1ng B l\u00e0 trung \u0111i\u1ec3m c\u1ee7a OC<\/p>\n\n\n\n<p>C\u00e1ch gi\u1ea3i:<\/p>\n\n\n\n<p>Ta c\u00f3 tam gi\u00e1c ABC vu\u00f4ng t\u1ea1i A c\u00f3 B l\u00e0 trung \u0111i\u1ec3m c\u1ee7a OC<\/p>\n\n\n\n<p>Suy ra OB = BC = AB<\/p>\n\n\n\n<p>M\u00e0 OB = OA suy ra OB = OA = AB<\/p>\n\n\n\n<p>Khi \u0111\u00f3 \u0394 OAB \u0111\u1ec1u n\u00ean<\/p>\n\n\n\n<p>\u21d2 S\u1ed1 \u0111o cung nh\u1ecf AB b\u1eb1ng 60\u00b0<\/p>\n\n\n\n<p>Th\u00f4ng tin c\u1ea7n bi\u1ebft v\u1ec1 g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<\/p>\n\n\n\n<p>C\u00e1ch l\u00e0m b\u00e0i t\u1eadp g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<\/p>\n\n\n\n<p>\u0110\u1ec3 c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft nhanh ch\u00f3ng c\u00e1c b\u00e0i t\u1eadp li\u00ean quan \u0111\u1ebfn g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung c\u0169ng nh\u01b0 b\u00e0i t\u1eadp To\u00e1n h\u1ecdc n\u00f3i chung, Vietlearn xin chia s\u1ebb m\u1ed9t v\u00e0i m\u1eb9o nh\u1ecf sau \u0111\u00e2y.<\/p>\n\n\n\n<p>Duy tr\u00ec s\u1ef1 t\u1eadp trung<\/p>\n\n\n\n<p>H\u00e3y th\u1ef1c s\u1ef1 t\u1eadp trung khi gi\u1ea3i quy\u1ebft b\u00e0i t\u1eadp. \u0110\u00e2y l\u00e0 y\u1ebfu t\u1ed1 \u0111\u1ea7u ti\u00ean gi\u00fap b\u1ea1n ho\u00e0n th\u00e0nh b\u00e0i t\u1eadp m\u1ed9t c\u00e1ch nhanh ch\u00f3ng v\u00e0 ch\u00ednh x\u00e1c. \u0110\u1ec3 duy tr\u00ec s\u1ef1 t\u1eadp trung, b\u1ea1n c\u1ea7n ghi nh\u1edb nh\u1eefng \u0111i\u1ec1u sau \u0111\u00e2y:<\/p>\n\n\n\n<p><a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">H\u1ecdc t\u1eadp<\/a> \u1edf n\u01a1i tho\u1ea3i m\u00e1i v\u00e0 s\u00e1ng s\u1ee7a. Ch\u1ecdn cho m\u00ecnh b\u00e0n v\u00e0 gh\u1ebf v\u1eeba v\u1eb7n, tho\u1ea3i m\u00e1i tr\u01b0\u1edbc khi <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc t\u1eadp<\/a>. Kh\u00f4ng n\u00ean ng\u1ed3i \u1edf tr\u00ean gi\u01b0\u1eddng ho\u1eb7c tr\u00ean s\u00e0n. Nh\u1eefng v\u1ecb tr\u00ed n\u00e0y s\u1ebd khi\u1ebfn cho b\u1ea1n c\u1ea3m th\u1ea5y bu\u1ed3n ng\u1ee7 v\u00e0 kh\u00f4ng th\u1ec3 <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc t\u1eadp<\/a> t\u1ed1t \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<p>Lo\u1ea1i b\u1ecf s\u1ef1 ph\u00e2n t\u00e2m c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed v\u00e0 s\u1ef1 c\u00e1m d\u1ed7 kh\u00e1c. T\u1ed1t nh\u1ea5t n\u00ean t\u1eaft \u0111i\u1ec7n tho\u1ea1i, \u0111\u1ec3 ch\u00fang \u1edf m\u1ed9t n\u01a1i kh\u00e1c \u0111\u1ec3 kh\u00f4ng l\u00e0m b\u1ea1n b\u1ecb ph\u00e2n t\u00e2m. H\u00e3y \u201cto\u00e0n t\u00e2m to\u00e0n \u00fd\u201d l\u00e0m b\u00e0i sau \u0111\u00f3 b\u1ea1n s\u1ebd c\u00f3 nhi\u1ec1u th\u1eddi gian h\u01a1n \u0111\u1ec3 gi\u1ea3i tr\u00ed sau \u0111\u00f3.<\/p>\n\n\n\n<p>\u0110\u1eb7t \u0111\u1ed3ng h\u1ed3 h\u1eb9n gi\u1edd \u0111\u1ec3 bi\u1ebft m\u00ecnh \u0111\u00e3 d\u00e0nh bao nhi\u00eau th\u1eddi gian cho vi\u1ec7c l\u00e0m b\u00e0i t\u1eadp. Nh\u01b0 v\u1eady, b\u1ea1n s\u1ebd c\u00f3 k\u1ebf ho\u1ea1ch \u0111\u1ec3 h\u1ecdc v\u00e0 ngh\u1ec9 ng\u01a1i ph\u00f9 h\u1ee3p. Tr\u00e1nh l\u00e0m b\u00e0i qu\u00e1 s\u1ee9c.<\/p>\n\n\n\n<p>S\u1eafp x\u1ebfp v\u1eadt d\u1ee5ng tr\u00ean b\u00e0n h\u1ecdc ng\u0103n n\u1eafp \u0111\u1ec3 tr\u00e1nh l\u00e3ng ph\u00ed th\u1eddi gian t\u00ecm ki\u1ebfm. Ph\u00e2n chia c\u00e1c lo\u1ea1i s\u00e1ch v\u1edf theo t\u1eebng ch\u1ed3ng kh\u00e1c nhau. V\u00ed d\u1ee5 nh\u01b0 s\u00e1ch gi\u00e1o khoa, v\u1edf b\u00e0i t\u1eadp ri\u00eang. C\u00e1c lo\u1ea1i s\u00e1ch b\u00e0i t\u1eadp h\u00f4m nay b\u1ea1n s\u1ebd l\u00e0m \u0111\u01b0\u1ee3c \u0111\u1eb7t ra v\u1ecb tr\u00ed ri\u00eang \u0111\u1ec3 gi\u1ea3i quy\u1ebft d\u1ea7n.<\/p>\n\n\n\n<p>L\u00ean k\u1ebf ho\u1ea1ch l\u00e0m b\u00e0i ph\u00f9 h\u1ee3p<\/p>\n\n\n\n<p>L\u1eadp th\u1eddi gian bi\u1ec3u l\u00e0m b\u00e0i t\u1eadp m\u1ed9t c\u00e1ch ph\u00f9 h\u1ee3p. T\u1ed1t nh\u1ea5t l\u00e0 b\u1eaft tay v\u00e0o l\u00e0m b\u00e0i t\u1eadp khi tan tr\u01b0\u1eddng. L\u00fac n\u00e0y, ki\u1ebfn th\u1ee9c v\u1eabn c\u00f2n trong \u0111\u1ea7u, b\u1ea1n s\u1ebd ghi nh\u1edb ch\u00fang \u0111\u01b0\u1ee3c t\u1ed1t h\u01a1n v\u00e0 l\u00e0m b\u00e0i t\u1eadp hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n\n\n\n<p>\u01afu ti\u00ean th\u1eddi gian n\u1ed9p b\u00e0i v\u00e0 t\u1ea7m quan tr\u1ecdng c\u1ee7a b\u00e0i t\u1eadp. V\u00ed d\u1ee5 h\u00f4m nay ch\u00fang ta h\u1ecdc b\u00e0i g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung th\u00ec n\u00ean l\u00e0m b\u00e0i \u0111\u00f3 tr\u01b0\u1edbc \u0111\u1ec3 ghi nh\u1edb t\u1ed1t h\u01a1n. Ho\u1eb7c ng\u00e0y mai c\u00f3 ti\u1ebft h\u1ecdc li\u00ean quan \u0111\u1ebfn ki\u1ebfn th\u1ee9c n\u00e0y th\u00ec c\u0169ng n\u00ean \u0111\u01b0\u1ee3c \u01b0u ti\u00ean \u0111\u1ec3 gi\u1ea3i quy\u1ebft tr\u01b0\u1edbc.<\/p>\n\n\n\n<p>T\u1ea1o \u0111\u1ed9ng l\u1ef1c cho b\u1ea3n th\u00e2n<\/p>\n\n\n\n<p>Ngh\u1ec9 gi\u1ea3i lao khi c\u1ea3m th\u1ea5y m\u1ec7t m\u1ecfi. Kh\u00f4ng n\u00ean <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc t\u1eadp<\/a> qu\u00e1 s\u1ee9c s\u1ebd khi\u1ebfn cho \u0111\u1ea7u \u00f3c c\u0103ng th\u1eb3ng v\u00e0 m\u1ec7t m\u1ecfi. Nh\u01b0 v\u1eady s\u1ebd \u1ea3nh h\u01b0\u1edfng kh\u00f4ng t\u1ed1t \u0111\u1ebfn n\u00e3o b\u1ed9 v\u00e0 th\u1ea7n kinh.<\/p>\n\n\n\n<p>T\u1ed1t nh\u1ea5t l\u00e0 n\u00ean ph\u00e2n chia gi\u1edd h\u1ecdc v\u00e0 gi\u1ea3i lao ph\u00f9 h\u1ee3p. Sau kho\u1ea3ng 45 ph\u00fat \u0111\u1ebfn 1 ti\u1ebfng ch\u00fang ta ngh\u1ec9 m\u1ed9t l\u1ea7n. \u0102n nh\u1eb9 v\u00e0 u\u1ed1ng n\u01b0\u1edbc ho\u1eb7c th\u1ef1c hi\u1ec7n c\u00e1c b\u00e0i t\u1eadp v\u1eadn \u0111\u1ed9ng nh\u1eb9 \u0111\u1ec3 l\u1ea5y l\u1ea1i tinh th\u1ea7n.<\/p>\n\n\n\n<p>T\u1ef1 th\u01b0\u1edfng cho b\u1ea3n th\u00e2n sau th\u1eddi gian <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc t\u1eadp<\/a> b\u1eb1ng c\u00e1c tr\u00f2 ch\u01a1i gi\u1ea3i tr\u00ed. Tuy nhi\u00ean, c\u0169ng n\u00ean ki\u1ec1m ch\u1ebf \u0111\u1ec3 kh\u00f4ng m\u1ea3i m\u00ea, qu\u00e1 \u0111\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc t\u1eadp<\/a>.<\/p>\n\n\n\n<p>C\u00f9ng Vietlearn h\u1ecdc to\u00e1n t\u1ed1t h\u01a1n<\/p>\n\n\n\n<p>C\u00f9ng t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung v\u00e0 c\u00e1c ki\u1ebfn th\u1ee9c c\u00f3 li\u00ean quan \u0111\u1ebfn m\u00f4n To\u00e1n h\u1ecdc t\u1ea1i \u0111\u1ecba ch\u1ec9 Vietlearn.org\/. Vietlearn s\u1ebd gi\u00fap b\u1ea1n h\u1ec7 th\u1ed1ng l\u1ea1i c\u00e1c ki\u1ebfn th\u1ee9c m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng, c\u1ee5 th\u1ec3 \u0111\u1ec3 vi\u1ec7c <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc t\u1eadp<\/a> tr\u1edf n\u00ean thu\u1eadn l\u1ee3i h\u01a1n.<\/p>\n\n\n\n<p>Xem th\u00eam<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"G\u00f3c \u1edf t\u00e2m S\u1ed1 \u0111o cung - To\u00e1n 9 - Th\u1ea7y Tr\u1ea7n Trung H\u1ea3i 2020 (HAY NH\u1ea4T)\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/PTN0KHBnkRM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption>G\u00f3c \u1edf t\u00e2m S\u1ed1 \u0111o cung &#8211; To\u00e1n 9<\/figcaption><\/figure>\n\n\n\n\n\n<div style=\"display:none\">\ng\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ng\u00f3c \u1edf t\u00e2m<br>\nph\u00e9p quay t\u00e2m o g\u00f3c -90 \u0111\u1ed9<br>\nc\u00f4ng th\u1ee9c ph\u00e9p quay t\u00e2m o g\u00f3c 90 \u0111\u1ed9<br>\nph\u00e9p quay t\u00e2m o g\u00f3c 180 \u0111\u1ed9<br>\nph\u00e9p quay t\u00e2m o g\u00f3c 45 \u0111\u1ed9<br>\ng\u00f3c n\u1ed9i ti\u1ebfp v\u00e0 g\u00f3c \u1edf t\u00e2m<br>\ns\u1ed1 \u0111o g\u00f3c \u1edf t\u00e2m<br>\nm\u1ed9t c\u00e1i \u0111inh \u0111\u01b0\u1ee3c c\u1eafm vu\u00f4ng g\u00f3c v\u00e0o t\u00e2m o<br>\nt\u00ednh ch\u1ea5t g\u00f3c \u1edf t\u00e2m<br>\ng\u00f3c \u1edf t\u00e2m b\u1eb1ng s\u1ed1 \u0111o cung b\u1ecb ch\u1eafn<br>\nb\u00e0i 1 g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ng\u00f3c \u1edf t\u00e2m l\u00e0 g\u00ec<br>\ncho tam gi\u00e1c abc c\u00f3 3 g\u00f3c nh\u1ecdn n\u1ed9i ti\u1ebfp \u0111\u01b0\u1eddng tr\u00f2n t\u00e2m o c\u00e1c \u0111\u01b0\u1eddng cao ad, be, cf c\u1eaft nhau t\u1ea1i h<br>\ng\u00f3c \u1edf t\u00e2m v\u00e0 g\u00f3c n\u1ed9i ti\u1ebfp<br>\nc\u00f4ng th\u1ee9c ph\u00e9p quay t\u00e2m o g\u00f3c -90 \u0111\u1ed9<br>\nto\u00e1n 9 g\u00f3c \u1edf t\u00e2m. s\u1ed1 \u0111o cung<br>\nc\u00e1ch t\u00ednh g\u00f3c \u1edf t\u00e2m<br>\nm\u1ed9t mi\u1ebfng g\u1ed7 h\u00ecnh tr\u00f2n b\u00e1n k\u00ednh 4cm \u1edf t\u00e2m o c\u1eafm th\u1eb3ng g\u00f3c m\u1ed9t \u0111inh oa<br>\nt\u00ednh ch\u1ea5t g\u00f3c \u1edf t\u00e2m \u0111\u01b0\u1eddng tr\u00f2n<br>\n\u0111\u1ecbnh ngh\u0129a g\u00f3c \u1edf t\u00e2m<br>\ng\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung sbt<br>\nto\u00e1n 9 b\u00e0i 1 g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ns\u1ed1 \u0111o g\u00f3c \u1edf t\u00e2m b\u1eb1ng<br>\nc\u00f4ng th\u1ee9c t\u00ednh g\u00f3c \u1edf t\u00e2m<br>\nph\u00e9p quay t\u00e2m o g\u00f3c -90 \u0111\u1ed9 c\u00f4ng th\u1ee9c<br>\ncho tam gi\u00e1c abc c\u00f3 3 g\u00f3c nh\u1ecdn n\u1ed9i ti\u1ebfp \u0111\u01b0\u1eddng tr\u00f2n t\u00e2m o c\u00e1c \u0111\u01b0\u1eddng cao ad be cf c\u1eaft nhau t\u1ea1i h<br>\nto\u00e1n 9 b\u00e0i g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ncho tam gi\u00e1c abc c\u00f3 3 g\u00f3c nh\u1ecdn n\u1ed9i ti\u1ebfp \u0111\u01b0\u1eddng tr\u00f2n t\u00e2m o<br>\nph\u00e9p quay t\u00e2m o g\u00f3c -180 \u0111\u1ed9<br>\ng\u00f3c \u1edf t\u00e2m l\u00e0 g\u00f3c c\u00f3 \u0111\u1ec9nh<br>\ng\u00f3c \u1edf t\u00e2m l\u00e0 j<br>\nt\u00ednh ch\u1ea5t c\u1ee7a g\u00f3c \u1edf t\u00e2m<br>\ngoc o tam<br>\nph\u00e9p quay t\u00e2m o g\u00f3c 45<br>\nph\u00e9p quay t\u00e2m o g\u00f3c 270 \u0111\u1ed9<br>\ns\u1ed1 \u0111o c\u1ee7a g\u00f3c \u1edf t\u00e2m<br>\nmua g\u1ed1c t\u1ea7m xu\u00e2n \u1edf \u0111\u00e2u<br>\ngi\u1ea3i to\u00e1n 9 b\u00e0i g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\nc\u00e1ch t\u00ednh s\u1ed1 \u0111o g\u00f3c \u1edf t\u00e2m<br>\n\u0111\u1ecbnh l\u00ed g\u00f3c \u1edf t\u00e2m<br>\nth\u1ebf n\u00e0o l\u00e0 g\u00f3c \u1edf t\u00e2m<br>\nt\u00ednh g\u00f3c \u1edf t\u00e2m \u0111\u01b0\u1eddng tr\u00f2n<br>\ncho \u0111\u01b0\u1eddng tr\u00f2n t\u00e2m o \u0111\u01b0\u1eddng k\u00ednh ab. v\u1ebd d\u00e2y cung cd vu\u00f4ng g\u00f3c v\u1edbi ab t\u1ea1i i<br>\nso\u1ea1n b\u00e0i g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ng\u00f3c \u1edf t\u00e2m v\u00e0 s\u1ed1 \u0111o cung<br>\ng\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung l\u1edbp 9<br>\ng\u00f3c \u1edf t\u00e2m-s\u1ed1 \u0111o cung l\u00fd thuy\u1ebft<br>\ng\u00f3c \u1edf t\u00e2m c\u00f3 s\u1ed1 \u0111o<br>\ngi\u1ea3i to\u00e1n 9 g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\nquan h\u1ec7 gi\u1eefa g\u00f3c n\u1ed9i ti\u1ebfp v\u00e0 g\u00f3c \u1edf t\u00e2m<br>\ng\u00f3c \u1edf t\u00e2m l\u00e0 g\u00f3c<br>\ns\u1ed1 \u0111o cung v\u00e0 g\u00f3c \u1edf t\u00e2m<br>\n\u0111\u1ecbnh l\u00fd g\u00f3c \u1edf t\u00e2m<br>\ngoc o tam lop 9<br>\nh\u1ec7 qu\u1ea3 c\u1ee7a g\u00f3c \u1edf t\u00e2m<br>\ns\u1ed1 \u0111o c\u1ee7a g\u00f3c \u1edf t\u00e2m b\u1eb1ng v\u1edbi s\u1ed1 \u0111o<br>\nch\u1ee9ng minh g\u00f3c n\u1ed9i ti\u1ebfp b\u1eb1ng n\u1eeda g\u00f3c \u1edf t\u00e2m<br>\ng\u00f3c \u1edf t\u00e2m b\u1eb1ng<br>\nph\u00e9p quay t\u00e2m o g\u00f3c quay 90 \u0111\u1ed9<br>\ngi\u1ea3i b\u00e0i t\u1eadp g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\nto\u00e1n 9 g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ngi\u1ea3i b\u00e0i g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ng\u00f3c \u1edf t\u00e2m c\u00f3 s\u1ed1 \u0111o b\u1eb1ng<br>\nph\u00e9p quay t\u00e2m o g\u00f3c 60 \u0111\u1ed9<br>\nt\u00ednh ch\u1ea5t g\u00f3c n\u1ed9i ti\u1ebfp v\u00e0 g\u00f3c \u1edf t\u00e2m<br>\nph\u00e9p quay t\u00e2m o g\u00f3c 90 \u0111\u1ed9 bi\u1ebfn \u0111\u01b0\u1eddng tr\u00f2n<br>\nc\u00e1ch t\u00ednh g\u00f3c \u1edf \u0111\u1ec9nh c\u1ee7a tam gi\u00e1c c\u00e2n<br>\nto\u00e1n l\u1edbp 9 b\u00e0i g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ng\u00f3c \u1edf t\u00e2m \u0111\u01b0\u1eddng tr\u00f2n<br>\nt\u00ednh g\u00f3c \u1edf t\u00e2m<br>\nto\u00e1n h\u00ecnh 9 g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\nph\u00e9p quay t\u00e2m o g\u00f3c &#8211; 90 \u0111\u1ed9<br>\ns\u1ed1 \u0111o c\u1ee7a g\u00f3c \u1edf t\u00e2m b\u1eb1ng<br>\nch\u1ee9ng minh t\u00e2m o n\u1eb1m b\u00ean ngo\u00e0i g\u00f3c bac<br>\nph\u00e9p quay t\u00e2m o g\u00f3c quay -90\u00b0<br>\nso\u1ea1n to\u00e1n 9 g\u00f3c \u1edf t\u00e2m. s\u1ed1 \u0111o cung<br>\nc\u00f4ng th\u1ee9c t\u00ednh s\u1ed1 \u0111o g\u00f3c \u1edf t\u00e2m<br>\ncho tam gi\u00e1c abc c\u00f3 ba g\u00f3c nh\u1ecdn n\u1ed9i ti\u1ebfp \u0111\u01b0\u1eddng tr\u00f2n t\u00e2m o<br>\nc\u00e1ch t\u00ednh g\u00f3c \u1edf \u0111\u00e1y c\u1ee7a tam gi\u00e1c c\u00e2n<br>\nt\u00e2m o n\u1eb1m b\u00ean ngo\u00e0i g\u00f3c bac<br>\nquay t\u00e2m o g\u00f3c 90 \u0111\u1ed9<br>\ncho tam gi\u00e1c abc c\u00e1c tia ph\u00e2n gi\u00e1c c\u1ee7a g\u00f3c b v\u00e0 c c\u1eaft nhau \u1edf i<br>\ncho ph\u00e9p quay q t\u00e2m o v\u1edbi g\u00f3c quay<br>\nnh\u1eefng ng\u01b0\u1eddi theo ch\u1ee7 ngh\u0129a duy t\u00e2m s\u1ebd t\u00ecm ngu\u1ed3n g\u1ed1c c\u1ee7a s\u1ef1 v\u1eadn \u0111\u1ed9ng ph\u00e1t tri\u1ec3n \u1edf \u0111\u00e2u?<br>\nt\u00ednh ch\u1ea5t g\u00f3c \u1edf t\u00e2m c\u1ee7a \u0111\u01b0\u1eddng tr\u00f2n<br>\ng\u00f3c ph\u1ea7n t\u00e1m th\u1ee9 nh\u1ea5t \u1edf \u0111\u00e2u<br>\nc\u00f4ng th\u1ee9c ph\u00e9p quay t\u00e2m o g\u00f3c -180 \u0111\u1ed9<br>\nc\u00f4ng th\u1ee9c t\u00ednh g\u00f3c \u1edf \u0111\u1ec9nh c\u1ee7a tam gi\u00e1c c\u00e2n<br>\nc\u00f4ng th\u1ee9c t\u00ednh g\u00f3c \u1edf \u0111\u00e1y c\u1ee7a tam gi\u00e1c c\u00e2n<br>\nt\u00ednh ch\u1ea5t g\u00f3c \u1edf t\u00e2m v\u00e0 g\u00f3c n\u1ed9i ti\u1ebfp<br>\ng\u00f3c \u1edf t\u00e2m l\u00e0<br>\nph\u00e9p quay t\u00e2m o g\u00f3c -45 \u0111\u1ed9<br>\ng\u00f3c \u1edf \u0111\u00e1y c\u1ee7a tam gi\u00e1c c\u00e2n l\u00e0<br>\ntrung t\u00e2m ti\u1ebfng anh cho ng\u01b0\u1eddi m\u1ea5t g\u1ed1c \u1edf h\u00e0 n\u1ed9i<br>\ng\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung l\u00fd thuy\u1ebft<br>\nph\u00e9p quay t\u00e2m o g\u00f3c -90<br>\nph\u00e9p quay t\u00e2m o g\u00f3c quay<br>\ng\u00f3c \u1edf t\u00e2m ch\u1eafn cung<br>\ng\u00f3c n\u1ed9i ti\u1ebfp g\u00f3c \u1edf t\u00e2m<br>\nph\u00e9p quay t\u00e2m o g\u00f3c 90 \u0111\u1ed9 bi\u1ebfn \u0111\u01b0\u1eddng th\u1eb3ng<br>\nc\u00f4ng th\u1ee9c g\u00f3c \u1edf t\u00e2m<br>\ng\u00f3c \u1edf t\u00e2m. s\u1ed1 \u0111o cung<br>\nc\u00f4ng th\u1ee9c ph\u00e9p quay t\u00e2m o g\u00f3c 45 \u0111\u1ed9<br>\nto\u00e1n l\u1edbp 9 g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ngoc o tam so do cung<br>\nl\u00fd thuy\u1ebft g\u00f3c \u1edf t\u00e2m<br>\nb\u00e0i t\u1eadp g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\nso\u1ea1n to\u00e1n 9 b\u00e0i g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\nph\u00e9p quay t\u00e2m o g\u00f3c<br>\ng\u00f3c \u1edf \u0111\u1ec9nh c\u1ee7a tam gi\u00e1c c\u00e2n<br>\nt\u00ednh s\u1ed1 \u0111o g\u00f3c \u1edf t\u00e2m<br>\nt\u00ednh g\u00f3c \u1edf \u0111\u1ec9nh c\u1ee7a tam gi\u00e1c c\u00e2n<br>\ng\u00f3c \u1edf t\u00e2m b\u1eb1ng g\u00ec<br>\nto\u00e1n 9 h\u00ecnh h\u1ecdc g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\nnh\u1eefng ng\u01b0\u1eddi theo ch\u1ee7 ngh\u0129a duy t\u00e2m s\u1ebd t\u00ecm ngu\u1ed3n g\u1ed1c c\u1ee7a s\u1ef1 v\u1eadn \u0111\u1ed9ng ph\u00e1t tri\u1ec3n \u1edf \u0111\u00e2u<br>\ngi\u1ea3i b\u00e0i t\u1eadp b\u00e0i g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\nd\u0111\u1ecbnh ngh\u0129a g\u00f3c \u1edf t\u00e2m<br>\nph\u00e9p quay t\u00e2m o g\u00f3c quay -90<br>\nb\u00e0i t\u1eadp v\u1ec1 g\u00f3c \u1edf t\u00e2m<br>\nchuy\u00ean \u0111\u1ec1 g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ngi\u1ea3i g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ng\u00f3c \u1edf t\u00e2m v\u00e0 d\u00e2y cung<br>\ngi\u1ea3i b\u00e0i t\u1eadp to\u00e1n 9 b\u00e0i g\u00f3c \u1edf t\u00e2m<br>\nren tam gi\u00e1c c\u00f3 g\u00f3c \u1edf \u0111\u1ec9nh<br>\nso\u1ea1n g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ng\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o g\u00f3c<br>\ngi\u1ea3i b\u00e0i t\u1eadp to\u00e1n 9 g\u00f3c \u1edf t\u00e2m<br>\ng\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung thu vien bai giang<br>\nb\u00e0i gi\u1ea3ng g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\nt\u00ecm \u1ea3nh c\u1ee7a \u0111\u01b0\u1eddng tr\u00f2n qua ph\u00e9p quay t\u00e2m o g\u00f3c 90<br>\nph\u00e9p quay t\u00e2m o g\u00f3c quay 180 \u0111\u1ed9<br>\nt\u00ecm m \u0111\u1ec3 h\u00e0m s\u1ed1 c\u00f3 3 c\u1ef1c tr\u1ecb nh\u1eadn g\u1ed1c t\u1ecda \u0111\u1ed9 o l\u00e0m tr\u1ecdng t\u00e2m<br>\ntinh chat goc o tam<br>\nb\u00e0i g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ns\u1ed1 \u0111o g\u00f3c \u1edf t\u00e2m b\u1eb1ng g\u00ec<br>\nto\u00e1n 9 g\u00f3c \u1edf t\u00e2m<br>\ng\u00f3c c\u00f3 \u0111\u1ec9nh \u1edf t\u00e2m \u0111\u01b0\u1eddng tr\u00f2n<br>\nb\u00e0i t\u1eadp g\u00f3c \u1edf t\u00e2m l\u1edbp 9<br>\nc\u00f3 bao nhi\u00eau \u0111i\u1ec3m bi\u1ebfn th\u00e0nh ch\u00ednh n\u00f3 qua ph\u00e9p quay t\u00e2m o g\u00f3c quay alpha kh\u00e1c k2pi<br>\nkh\u00e1i ni\u1ec7m g\u00f3c \u1edf t\u00e2m<br>\ngi\u1ea3i b\u00e0i t\u1eadp to\u00e1n g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ncho h\u00ecnh vu\u00f4ng t\u00e2m o h\u1ecfi c\u00f3 bao nhi\u00eau ph\u00e9p quay t\u00e2m o g\u00f3c quay alpha<br>\nc\u00f4ng th\u1ee9c ph\u00e9p quay t\u00e2m o g\u00f3c 180 \u0111\u1ed9<br>\nt\u00ednh g\u00f3c \u1edf \u0111\u00e1y c\u1ee7a tam gi\u00e1c c\u00e2n<br>\ntrong tam gi\u00e1c c\u00e2n hai g\u00f3c \u1edf \u0111\u00e1y b\u1eb1ng nhau<br>\nph\u00e9p quay t\u00e2m o g\u00f3c 90 bi\u1ebfn \u0111\u01b0\u1eddng th\u1eb3ng<br>\ncho tam gi\u00e1c abc c\u00f3 ba g\u00f3c nh\u1ecdn n\u1ed9i ti\u1ebfp \u0111\u01b0\u1eddng tr\u00f2n t\u00e2m o b\u00e1n k\u00ednh r<br>\ncho h\u00ecnh ch\u00f3p tam gi\u00e1c \u0111\u1ec1u sabc c\u00f3 c\u1ea1nh b\u00ean b\u1eb1ng a g\u00f3c \u1edf \u0111\u00e1y c\u1ee7a m\u1eb7t b\u00ean l\u00e0 45<br>\nli\u00ean h\u1ec7 gi\u1eefa g\u00f3c n\u1ed9i ti\u1ebfp v\u00e0 g\u00f3c \u1edf t\u00e2m<br>\nhai tam gi\u00e1c c\u00e2n c\u00f3 g\u00f3c \u1edf \u0111\u00e1y b\u1eb1ng nhau<br>\ntrong mot duong tron so do goc o tam bang<br>\nph\u00e9p quay t\u00e2m o g\u00f3c quay alpha<br>\ntrung t\u00e2m ti\u1ebfng anh cho ng\u01b0\u1eddi m\u1ea5t g\u1ed1c \u1edf tphcm<br>\nb\u00e0i t\u1eadp g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung violet<br>\nph\u00e9p quay t\u00e2m o g\u00f3c 0 \u0111\u1ed9<br>\nso\u1ea1n to\u00e1n b\u00e0i g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\nph\u00e9p quay t\u00e2m o g\u00f3c -180<br>\nc\u00e1c b\u00e0i t\u1eadp v\u1ec1 g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ng\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung sgk<br>\ncho h\u00ecnh ch\u00f3p sabcd c\u00f3 \u0111\u00e1y l\u00e0 h\u00ecnh thoi t\u00e2m o c\u1ea1nh a v\u00e0 c\u00f3 g\u00f3c bad=60<br>\ncho tam gi\u00e1c abc c\u00f3 3 g\u00f3c nh\u1ecdn \u0111\u01b0\u1eddng tr\u00f2n t\u00e2m o \u0111\u01b0\u1eddng k\u00ednh bc c\u1eaft c\u00e1c c\u1ea1nh<br>\ncho h\u00ecnh ch\u00f3p tam gi\u00e1c \u0111\u1ec1u s abcd c\u00f3 c\u1ea1nh b\u00ean a g\u00f3c \u1edf \u0111\u00e1y c\u1ee7a m\u1eb7t b\u00ean l\u00e0 45o<br>\nph\u00e9p quay t\u00e2m o g\u00f3c 45 \u0111\u1ed9 bi\u1ebfn \u0111\u01b0\u1eddng th\u1eb3ng<br>\ng\u00f3c \u1edf t\u00e2m. s\u1ed1 \u0111o cung luyen tap<br>\nto\u00e1n 9 goc o tam<br>\nph\u00e9p quay t\u00e2m o g\u00f3c 60<br>\nph\u00e9p quay t\u00e2m o g\u00f3c -90 \u0111\u1ed9 bi\u1ebfn \u0111\u01b0\u1eddng tr\u00f2n<br>\ng\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung b\u00e0i t\u1eadp<br>\ng\u00f3c quay t\u00e2m o<br>\nc\u1ed9ng th\u1ee9c t\u00ednh s\u1ed1 \u0111o g\u00f3c \u1edf t\u00e2m<br>\nb\u00e0i t\u1eadp v\u1ec1 g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\nph\u00e9p quay t\u00e2m o g\u00f3c 90 \u0111\u1ed9 c\u00f4ng th\u1ee9c<br>\n\u0111\u1ecbnh ngh\u0129a g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\nto\u00e1n 9 g\u00f3c \u1edf t\u00e2m. s\u1ed1 \u0111o cung sbt<br>\n\u0111\u1ec9nh l\u00ed g\u00f3c \u1edf t\u00e2m<br>\ns\u1ed1 \u0111o cung g\u00f3c \u1edf t\u00e2m<br>\ncho h\u00ecnh vu\u00f4ng t\u00e2m o x\u00e9t ph\u00e9p quay q c\u00f3 t\u00e2m quay o v\u00e0 g\u00f3c quay<br>\nph\u00e9p quay t\u00e2m o g\u00f3c 90 bi\u1ebfn \u0111\u01b0\u1eddng tr\u00f2n<br>\ng\u00f3c \u1edf t\u00e2m c\u00f3 \u0111\u1ec9nh<br>\ng\u00f3c \u1edf t\u00e2m ch\u1eafn n\u1eeda \u0111\u01b0\u1eddng tr\u00f2n<br>\ng\u00f3c \u1edf t\u00e2m g\u00f3c n\u1ed9i ti\u1ebfp<br>\nbai giang dien tu goc o tam<br>\ncho h\u00ecnh tr\u00f2n t\u00e2m o v\u00e0 hai \u0111\u01b0\u1eddng k\u00ednh ac v\u00e0 bd vu\u00f4ng g\u00f3c v\u1edbi nhau. di\u1ec7n t\u00edch h\u00ecnh vu\u00f4ng abcd l\u00e0 120<br>\ncho n\u1eeda \u0111\u01b0\u1eddng tr\u00f2n t\u00e2m o \u0111\u01b0\u1eddng k\u00ednh ab b\u00e1n k\u00ednh oc vu\u00f4ng g\u00f3c v\u1edbi ab<br>\ncho n\u1eeda \u0111\u01b0\u1eddng tr\u00f2n t\u00e2m o \u0111\u01b0\u1eddng k\u00ednh ab g\u1ecdi ax by l\u00e0 c\u00e1c tia vu\u00f4ng g\u00f3c v\u1edbi ab<br>\nt\u00e2m \u0111\u01b0\u1eddng tr\u00f2n b\u00e0ng ti\u1ebfp g\u00f3c o<br>\nt\u00ednh di\u1ec7n t\u00edch tam gi\u00e1c oab v\u1edbi o l\u00e0 g\u1ed1c t\u1ecda \u0111\u1ed9<br>\ncho g\u00f3c xoy v\u1ebd cung tr\u00f2n t\u00e2m o<br>\ncho tam gi\u00e1c abc vu\u00f4ng \u1edf c c\u00f3 g\u00f3c a = 60 \u0111\u1ed9<br>\ng\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung luy\u1ec7n t\u1eadp<br>\nbai tap goc o tam<br>\nc\u00f3 bao nhi\u00eau ph\u00e9p quay t\u00e2m o g\u00f3c \u03b1(0\u2264\u03b1\u22642\u03c0) bi\u1ebfn tam gi\u00e1c \u0111\u1ec1u t\u00e2m o th\u00e0nh ch\u00ednh n\u00f3<br>\nn\u00eau \u0111\u1ecbnh ngh\u0129a g\u00f3c \u1edf t\u00e2m<br>\ntrong m\u1ed9t \u0111\u01b0\u1eddng tr\u00f2n g\u00f3c \u1edf t\u00e2m<br>\ngi\u00e1o \u00e1n g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ngi\u1ea3i to\u00e1n b\u00e0i g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ncho h\u00ecnh ch\u00f3p tam gi\u00e1c \u0111\u1ec1u sabc c\u00f3 c\u1ea1nh b\u00ean a g\u00f3c \u1edf \u0111\u00e1y c\u1ee7a m\u1eb7t b\u00ean l\u00e0 45<br>\n?2 b\u00e0i g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\nh\u1ec7 qu\u1ea3 g\u00f3c \u1edf t\u00e2m<br>\ncho h\u00ecnh ch\u00f3p sabcd c\u00f3 \u0111\u00e1y abcd l\u00e0 h\u00ecnh vu\u00f4ng t\u00e2m o c\u1ea1nh a sa vu\u00f4ng g\u00f3c v\u1edbi \u0111\u00e1y<br>\ntoan 9 bai 1 goc o tam<br>\ng\u00f3c \u01a1 t\u00e2m<br>\ngi\u00e1o \u00e1n b\u00e0i g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\nph\u00e9p quay t\u00e2m o g\u00f3c a<br>\ng\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung s\u00e1ch b\u00e0i t\u1eadp<br>\nto\u00e1n 9 t\u1eadp 2 g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\nb\u00e0i gi\u1ea3ng \u0111i\u1ec7n t\u1eed g\u00f3c \u1edf t\u00e2m<br>\nph\u00e9p quay t\u00e2m o g\u00f3c 180 bi\u1ebfn \u0111\u01b0\u1eddng th\u1eb3ng<br>\nph\u00e9p quay t\u00e2m o g\u00f3c quay 0 \u0111\u1ed9<br>\ng\u00f3c \u1edf t\u00e2m \u1ee9ng v\u1edbi cung<br>\nch\u1ee7 ngh\u0129a duy t\u00e2m t\u00ecm ngu\u1ed3n g\u1ed1c c\u1ee7a s\u1ef1 th\u1ed1ng nh\u1ea5t c\u1ee7a th\u1ebf gi\u1edbi \u1edf c\u00e1i g\u00ec ?<br>\nb\u00e0i t\u1eadp v\u1ec1 g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung violet<br>\nv\u0103n ph\u00f2ng ch\u00ednh ph\u1ee7 n\u00f3i v\u1ec1 ngu\u1ed3n g\u1ed1c tranh ch\u1ea5p \u0111\u1ea5t \u1edf \u0111\u1ed3ng t\u00e2m<br>\ng\u00f3c \u1edf t\u00e2m b\u1eb1ng 2 l\u1ea7n g\u00f3c n\u1ed9i ti\u1ebfp<br>\ng\u00f3c \u1edf t\u00e2m b\u1eb1ng bao nhi\u00eau \u0111\u1ed9<br>\n\u0111\u1ed9 d\u00e0i cung tr\u00f2n c\u00f3 g\u00f3c \u1edf t\u00e2m<br>\nto\u00e1n h\u00ecnh 9 b\u00e0i g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\nph\u00e9p quay t\u00e2m o g\u00f3c quay -90 \u0111\u1ed9<br>\nph\u00e9p quay t\u00e2m o g\u00f3c 180<br>\nb\u00e0i t\u1eadp g\u00f3c \u1edf t\u00e2m<br>\nb\u00e0i t\u1eadp v\u1ec1 g\u00f3c n\u1ed9i ti\u1ebfp v\u00e0 g\u00f3c \u1edf t\u00e2m<br>\ng\u00f3c \u1edf \u0111\u00e1y c\u1ee7a tam gi\u00e1c c\u00e2n l\u00e0 g\u00f3c g\u00ec<br>\nph\u00e9p quay t\u00e2m o g\u00f3c 120<br>\nph\u00e9p quay t\u00e2m o g\u00f3c 90<br>\nch\u1ee9ng minh t\u00e2m o n\u1eb1m b\u00ean trong g\u00f3c bac<br>\nt\u00ednh g\u00f3c \u1edf \u0111\u00e1y c\u1ee7a m\u1ed9t tam gi\u00e1c c\u00e2n<br>\ncho h\u00ecnh ch\u00f3p sabcd c\u00f3 \u0111\u00e1y l\u00e0 h\u00ecnh vu\u00f4ng t\u00e2m o sa vu\u00f4ng g\u00f3c (abcd)<br>\nluy\u1ec7n t\u1eadp g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ncho h\u00ecnh n\u00f3n \u0111\u1ec9nh s \u0111\u00e1y l\u00e0 h\u00ecnh tr\u00f2n t\u00e2m o g\u00f3c \u1edf \u0111\u1ec9nh b\u1eb1ng 120<br>\ng\u00f3c d\u01b0\u1edbi \u0111\u00e1y \u1edf t\u00e2m<br>\ng\u00f3c ph\u1ea7n t\u00e1m th\u1ee9 nh\u1ea5t \u1edf \u0111\u1ea7u<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng<br>\ns\u1ed1 \u0111o cung<br>\n8 ti\u1ebfng trong b\u1ec7nh vi\u1ec7n c\u00f9ng anh ch\u00e0ng s\u1ed1 \u0111\u1ecf<br>\ns\u1ed1 \u0111o cung tr\u00f2n<br>\ns\u1ed1 \u0111\u1ed3 b\u00e1t qu\u00e1i theo cung m\u1ec7nh<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng c\u1ee7a vinamilk<br>\nt\u00ednh s\u1ed1 \u0111o cung<br>\nc\u00e1ch t\u00ednh s\u1ed1 \u0111o cung<br>\nv\u00ec sao n\u01b0\u1edbc ta kh\u00f4ng c\u00f3 kh\u00ed h\u1eadu nhi\u1ec7t \u0111\u1edbi kh\u00f4 h\u1ea1n nh\u01b0 m\u1ed9t s\u1ed1 n\u01b0\u1edbc c\u00f3 c\u00f9ng v\u0129 \u0111\u1ed9<br>\ns\u01a1 \u0111\u1ed3 b\u00e1t qu\u00e1i theo cung m\u1ea1ng<br>\nc\u00f4ng th\u1ee9c t\u00ednh s\u1ed1 \u0111o cung<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy chi\u1ebfc l\u00e1 cu\u1ed1i c\u00f9ng<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng c\u1ee7a c\u00e0 ph\u00ea trung nguy\u00ean<br>\nth\u00f4ng s\u1ed1 \u0111\u1ed9 c\u1ee9ng c\u1ee7a c\u1ea7n c\u00e2u l\u1ee5c<br>\nt\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng kinh t\u1ebf 06 th\u00e1ng \u0111\u1ea7u n\u0103m 2015 so v\u1edbi c\u00f9ng k\u1ef3 n\u0103m 2014 l\u00e0<br>\nd\u00e2n ch\u1ee7 v\u00f4 s\u1ea3n so v\u1edbi b\u1ea5t c\u1ee9 ch\u1ebf \u0111\u1ed9 d\u00e2n ch\u1ee7 t\u01b0 s\u1ea3n n\u00e0o ti\u1ebfn b\u1ed9 nh\u1ea5t c\u0169ng d\u00e2n ch\u1ee7 h\u01a1n g\u1ea5p tri\u1ec7u l\u1ea7n<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng c\u00e0 ph\u00ea<br>\ns\u1ed1 \u0111o cung b\u1ecb ch\u1eafn<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy b\u00e0i chi\u1ebfc l\u00e1 cu\u1ed1i c\u00f9ng<br>\ns\u1ed1 \u0111o cung l\u00e0 g\u00ec<br>\ns\u01a1 \u0111\u1ed3 qu\u00e1 tr\u00ecnh cung \u1ee9ng thu\u1ed1c<br>\ns\u01a1 \u0111\u1ed3 h\u1ea1ch to\u00e1n doanh thu b\u00e1n h\u00e0ng v\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng l\u00faa g\u1ea1o<br>\nhai v\u1ee3 ch\u1ed3ng c\u00f9ng \u0111\u1ee9ng t\u00ean s\u1ed5 \u0111\u1ecf \u0111\u01b0\u1ee3c kh\u00f4ng<br>\nc\u00f4ng th\u1ee9c t\u00ednh s\u1ed1 \u0111o cung tr\u00f2n<br>\ns\u01a1 \u0111\u1ed3 h\u1ec7 th\u1ed1ng cung c\u1ea5p \u0111i\u1ec7n tr\u00ean \u00f4 t\u00f4<br>\nt\u00ednh s\u1ed1 \u0111o cung tr\u00f2n<br>\ns\u01a1 \u0111\u1ed3 cung ph\u1ea3n x\u1ea1 b\u00e0i ti\u1ebft n\u01b0\u1edbc b\u1ecdt<br>\nhai anh em c\u00f9ng \u0111\u1ee9ng t\u00ean s\u1ed5 \u0111\u1ecf<br>\ns\u1ed1 \u0111i\u1ec3m c\u00f3 bi\u00ean \u0111\u1ed9 c\u1ef1c \u0111\u1ea1i c\u00f9ng pha v\u1edbi nhau v\u00e0 c\u00f9ng pha v\u1edbi ngu\u1ed3n<br>\nc\u00e1ch t\u00ednh s\u1ed1 \u0111o cung nh\u1ecf<br>\ns\u1ed1 \u0111o g\u00f3c t\u1ea1o b\u1edfi ti\u1ebfp tuy\u1ebfn v\u00e0 d\u00e2y cung<br>\nn\u00eau c\u00e1ch t\u00ednh s\u1ed1 \u0111o cung nh\u1ecf cung l\u1edbn<br>\ng\u00f3c n\u1ed9i ti\u1ebfp b\u1eb1ng n\u1eeda s\u1ed1 \u0111o cung b\u1ecb ch\u1eafn<br>\n\u0111\u1ed3 s\u01a1 sinh con c\u01b0ng<br>\ng\u00f3c n\u1ed9i ti\u1ebfp ch\u1eafn cung 120\u00b0 c\u00f3 s\u1ed1 \u0111o l\u00e0<br>\ns\u1ed1 \u0111o cung l\u01b0\u1ee3ng gi\u00e1c<br>\nnhi\u1ec1u ng\u01b0\u1eddi c\u00f9ng \u0111\u1ee9ng t\u00ean s\u1ed5 \u0111\u1ecf<br>\nso s\u00e1nh \u0111\u1ed9 c\u1ee9ng c\u1ee7a th\u00e9p v\u00e0 inox<br>\nth\u00f4ng s\u1ed1 \u0111\u1ed9 c\u1ee9ng c\u1ea7n c\u00e2u<br>\ns\u01a1 \u0111\u1ed3 h\u1ec7 th\u1ed1ng cung c\u1ea5p nhi\u00ean li\u1ec7u diesel<br>\ntr\u00ean \u0111o\u1ea1n s1s2 s\u1ed1 \u0111i\u1ec3m c\u00f3 bi\u00ean \u0111\u1ed9 c\u1ef1c \u0111\u1ea1i c\u00f9ng pha v\u1edbi nhau v\u00e0 ng\u01b0\u1ee3c pha v\u1edbi ngu\u1ed3n<br>\ns\u01a1 \u0111\u1ed3 cung ho\u00e0ng \u0111\u1ea1o<br>\nth\u1ee7 t\u1ee5c 2 ng\u01b0\u1eddi c\u00f9ng \u0111\u1ee9ng t\u00ean s\u1ed5 \u0111\u1ecf<br>\n8 ti\u1ebfng c\u00f9ng anh nh\u00e2n vi\u00ean s\u1ed1 \u0111\u1ecf<br>\nc\u00e1ch t\u00ednh s\u1ed1 \u0111o cung tr\u00f2n<br>\nhi\u1ec7u c\u1ee7a hai s\u1ed1 l\u00e0 0,8. th\u01b0\u01a1ng c\u1ee7a hai s\u1ed1 \u0111\u00f3 c\u0169ng l\u00e0 0,8. h\u00e3y t\u00ecm s\u1ed1 b\u00e9.<br>\ntrong s\u1ed1 c\u00e1c dd c\u00f3 c\u00f9ng n\u1ed3ng \u0111\u1ed9 0 1m<br>\nt\u00ednh s\u1ed1 \u0111o cung nh\u1ecf<br>\ns\u01a1 \u0111\u1ed3 b\u00e1t qu\u00e1i theo cung m\u1ec7nh<br>\ns\u01a1 \u0111\u1ed3 m\u1ed1i quan h\u1ec7 cung c\u1ea7u<br>\nv\u1eadn t\u1ed1c bi\u1ebfn thi\u00ean c\u00f9ng t\u1ea7n s\u1ed1 v\u1edbi li \u0111\u1ed9<br>\ntrong m\u1ed9t \u0111\u01b0\u1eddng tr\u00f2n s\u1ed1 \u0111o cung nh\u1ecf b\u1eb1ng<br>\nx\u00e1c \u0111\u1ecbnh \u0111i\u1ec3m cu\u1ed1i c\u1ee7a cung c\u00f3 s\u1ed1 \u0111o<br>\ns\u01a1 \u0111\u1ed3 cung \u0111\u00ecnh hu\u1ebf<br>\ns\u1ed1 \u0111o c\u1ee7a cung<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng c\u1ee7a apple<br>\ns\u01a1 \u0111\u1ed3 b\u00e1t qu\u00e1i cung c\u00e0n<br>\n\u0111\u1ecbnh ngh\u0129a s\u1ed1 \u0111o cung<br>\ns\u1ed1 \u0111o cung nh\u1ecf<br>\nv\u1ebd s\u01a1 \u0111\u1ed3 t\u01b0 duy b\u00e0i chi\u1ebfc l\u00e1 cu\u1ed1i c\u00f9ng<br>\n8 ti\u1ebfng trong b\u1ec7nh vi\u1ec7n c\u00f9ng anh nh\u00e2n vi\u00ean s\u1ed1 \u0111\u1ecf<br>\nhai cung b\u1eb1ng nhau th\u00ec c\u00f3 s\u1ed1 \u0111o b\u1eb1ng nhau<br>\nc\u00f4ng th\u1ee9c s\u1ed1 \u0111o cung<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng c\u1ee7a samsung<br>\nv\u1ebd s\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng c\u1ee7a \u0111i\u1ec7n tho\u1ea1i apple<br>\n\u0111\u1ed9 c\u1ee9ng c\u1ee7a n\u01b0\u1edbc l\u00e0 s\u1ed1 \u0111o<br>\ns\u1ed5 \u0111\u1ecf \u0111\u1ea5t th\u1edd c\u00fang<br>\ns\u1ed1 \u0111o g\u00f3c n\u1ed9i ti\u1ebfp ch\u1eafn cung 80 \u0111\u1ed9 l\u00e0<br>\ng\u00f3c n\u1ed9i ti\u1ebfp v\u00e0 s\u1ed1 \u0111o cung<br>\nv\u1ebd s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n k\u00edn v\u1edbi hai b\u00f3ng \u0111\u00e8n c\u00f9ng lo\u1ea1i nh\u01b0 nhau \u0111\u01b0\u1ee3c m\u1eafc song song c\u00f4ng t\u1eafc \u0111\u00f3ng<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng c\u1ee7a \u0111i\u1ec7n tho\u1ea1i apple<br>\nso do cung<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng th\u1ecbt m\u00e1t meat deli<br>\n2 v\u1ee3 ch\u1ed3ng c\u00f9ng \u0111\u1ee9ng t\u00ean s\u1ed5 \u0111\u1ecf<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng c\u1ee7a th true milk<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy v\u0103n b\u1ea3n chi\u1ebfc l\u00e1 cu\u1ed1i c\u00f9ng<br>\nnh\u1eefng \u0111\u1ea1i l\u01b0\u1ee3ng c\u00f9ng t\u1ea7n s\u1ed1 v\u1edbi li \u0111\u1ed9<br>\n\u1edf t\u00e2m s\u1ed1 \u0111o cung<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng c\u1ee7a nike<br>\ns\u1ed1 n\u00e0o chia cho 1 c\u0169ng b\u1eb1ng ch\u00ednh s\u1ed1 \u0111\u00f3<br>\nv\u00ec sao n\u01b0\u1edbc ta kh\u00f4ng c\u00f3 kh\u00ed h\u1eadu kh\u00f4 h\u1ea1n nh\u01b0 m\u1ed9t s\u1ed1 n\u01b0\u1edbc c\u00f3 c\u00f9ng v\u0129 \u0111\u1ed9<br>\nch\u00e0ng trai \u0111i s\u1edd ng\u1ef1c 100 c\u00f4 g\u00e1i nh\u01b0ng \u0111\u1ebfn c\u00f4 cu\u1ed1i c\u00f9ng th\u00ec kh\u00f4ng ch\u1ec9 d\u1eebng l\u1ea1i \u1edf \u0111\u00f3 !!<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy n\u01b0\u1edbc c\u1ee9ng<br>\ns\u1ed1 \u0111o c\u1ee7a cung nh\u1ecf trong m\u1ed9t \u0111\u01b0\u1eddng tr\u00f2n b\u1eb1ng<br>\ns\u01a1 \u0111\u1ed3 gh\u1ebf cung v\u0103n h\u00f3a h\u1eefu ngh\u1ecb vi\u1ec7t x\u00f4<br>\ncung n\u1eeda \u0111\u01b0\u1eddng tr\u00f2n c\u00f3 s\u1ed1 \u0111o l\u00e0<br>\nt\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng kinh t\u1ebf 06 th\u00e1ng \u0111\u1ea7u n\u0103m 2015 so v\u1edbi c\u00f9ng k\u1ef3 n\u0103m 2014<br>\nc\u00e1ch t\u00ednh s\u1ed1 \u0111o cung b\u1ecb ch\u1eafn<br>\ns\u01a1 \u0111\u1ed3 ph\u1ea7n c\u1ee9ng c\u1ee7a m\u00e1y t\u00ednh<br>\ns\u1ed1 \u0111o cung v\u00e0 \u0111\u1ed9 d\u00e0i cung<br>\ns\u01a1 \u0111\u1ed3 k\u1ebft n\u1ed1i ph\u1ea7n c\u1ee9ng plc s7-300<br>\ns\u01a1 \u0111\u1ed3 ch\u1ed7 ng\u1ed3i cung v\u0103n h\u00f3a vi\u1ec7t x\u00f4<br>\ns\u1ed1 \u0111o d\u00e2y cung<br>\nt\u00f4i t\u00e0i gi\u1ecfi b\u1ea1n c\u0169ng th\u1ebf s\u01a1 \u0111\u1ed3 t\u01b0 duy<br>\ns\u1ed1 \u0111o cung tr\u00f2n l\u00e0 g\u00ec<br>\nhai ngu\u1ed3n s\u00f3ng c\u00f9ng bi\u00ean \u0111\u1ed9 c\u00f9ng t\u1ea7n s\u1ed1 v\u00e0 ng\u01b0\u1ee3c pha<br>\ns\u01a1 \u0111\u1ed3 chi\u1ebfc l\u00e1 cu\u1ed1i c\u00f9ng<br>\nv\u1ebd s\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng<br>\ns\u01a1 \u0111\u1ed3 m\u00ea cung<br>\nso s\u00e1nh \u0111\u1ed9 c\u1ee9ng c\u1ee7a gang v\u00e0 th\u00e9p<br>\ntrong \u0111o\u1ea1n gi\u1eefa 3 v\u00e2n s\u00e1ng li\u00ean ti\u1ebfp c\u00f9ng m\u00e0u v\u1edbi v\u00e2n trung t\u00e2m c\u00f3 s\u1ed1 v\u00e2n \u0111\u1ecf v\u00e0 v\u00e2n lam l\u00e0<br>\nv\u1ebd s\u01a1 \u0111\u1ed3 m\u1ed1i quan h\u1ec7 cung c\u1ea7u<br>\nv\u1ebd s\u01a1 \u0111\u1ed3 t\u01b0 duy chi\u1ebfc l\u00e1 cu\u1ed1i c\u00f9ng<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng d\u1ecbch v\u1ee5 du l\u1ecbch<br>\ns\u01a1 \u0111\u1ed3 ph\u1ea3n \u00e1nh \u0111\u00fang quy lu\u1eadt cung c\u1ea7u<br>\n\u0111\u1ed3 ch\u01a1i cho b\u00e9 s\u01a1 sinh con c\u00f9ng<br>\nm\u1eb9 v\u00e0 con c\u00f9ng \u0111\u1ee9ng t\u00ean s\u1ed5 \u0111\u1ecf<br>\ns\u01a1 \u0111\u1ed3 cung v\u0103n h\u00f3a h\u1eefu ngh\u1ecb vi\u1ec7t x\u00f4<br>\ns\u01a1 \u0111\u1ed3 cung ph\u1ea3n x\u1ea1<br>\ns\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac ph\u1ea7n c\u1ee9ng c\u1ee7a m\u00e1y t\u00ednh<br>\nbi\u1ec3u \u0111\u1ed3 so s\u00e1nh c\u00f9ng k\u1ef3<br>\nv\u1ee3 ch\u1ed3ng c\u00f9ng \u0111\u1ee9ng t\u00ean s\u1ed5 \u0111\u1ecf<br>\ncombo \u0111\u1ed3 s\u01a1 sinh con c\u01b0ng<br>\ns\u01a1 \u0111\u1ed3 t\u1eed cung<br>\ns\u1ed1 \u0111i\u1ec3m c\u00f3 bi\u00ean \u0111\u1ed9 c\u1ef1c \u0111\u1ea1i c\u00f9ng pha v\u1edbi nhau v\u00e0 ng\u01b0\u1ee3c pha v\u1edbi ngu\u1ed3n<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng thu\u1ed1c \u1edf vi\u1ec7t nam<br>\ns\u01a1 \u0111\u1ed3 cung ph\u1ea3n x\u1ea1 t\u1ef1 v\u1ec7 \u1edf ng\u01b0\u1eddi<br>\ns\u01a1 \u0111\u1ed3 k\u1ebft n\u1ed1i ph\u1ea7n c\u1ee9ng plc s7-1200<br>\ns\u1ed1 \u0111o g\u00f3c ch\u1eafn cung<br>\ns\u1ed1 \u0111o c\u1ee7a cung l\u01b0\u1ee3ng gi\u00e1c<br>\nn\u1ebfu 1 cung tr\u00f2n c\u00f3 s\u1ed1 \u0111o l\u00e0 a \u0111\u1ed9<br>\ns\u01a1 \u0111\u1ed3 k\u1ebf to\u00e1n doanh thu b\u00e1n h\u00e0ng v\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5<br>\ns\u01a1 \u0111\u1ed3 k\u1ebft n\u1ed1i ph\u1ea7n c\u1ee9ng plc s7-200<br>\nc\u00e1ch t\u00ednh s\u1ed1 \u0111o cung nh\u1ecf cung l\u1edbn<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng c\u1ee7a coca cola<br>\nc\u00e1ch \u0111\u1ed5i s\u1ed1 \u0111o cung ra \u0111\u1ed9 ph\u00fat gi\u00e2y<br>\nt\u00ecm s\u1ed1 \u0111o rad c\u1ee7a cung<br>\n\u0111\u1ea1i l\u01b0\u1ee3ng c\u00f9ng t\u1ea7n s\u1ed1 v\u1edbi li \u0111\u1ed9<br>\nt\u00ecm m\u1ed9t s\u1ed1 t\u1ef1 nhi\u00ean bi\u1ebft n\u1ebfu x\u00f3a 2 ch\u1eef s\u1ed1 t\u1eadn c\u00f9ng c\u1ee7a s\u1ed1 \u0111\u00f3 \u0111i ta \u0111\u01b0\u1ee3c s\u1ed1 m\u1edbi k\u00e9m s\u1ed1 ph\u1ea3i t\u00ecm 2444<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng s\u1ea3n ph\u1ea9m gi\u1ea5y<br>\nk\u1ec3 th\u1ee9 t\u1ef1 ch\u00ednh x\u00e1c s\u01a1 \u0111\u1ed3 cung ph\u1ea3n x\u1ea1<br>\nhai ng\u01b0\u1eddi c\u00f9ng \u0111\u1ee9ng t\u00ean s\u1ed5 \u0111\u1ecf<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng nguy\u00ean li\u1ec7u kh\u00e9p k\u00edn<br>\nv\u1ebd s\u01a1 \u0111\u1ed3 1 cung ph\u1ea3n x\u1ea1<br>\ns\u01a1 \u0111\u1ed3 cung \u1ee9ng thu\u1ed1c<br>\nhai cung c\u00f3 s\u1ed1 \u0111o b\u1eb1ng nhau th\u00ec b\u1eb1ng nhau<br>\nso s\u00e1nh n\u1ed3ng \u0111\u1ed9 mol c\u1ee7a ch3coona v\u00e0 naoh c\u00f3 c\u00f9ng ph<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng m\u1edf r\u1ed9ng<br>\nhi\u1ec7u c\u1ee7a hai s\u1ed1 l\u00e0 0,8. th\u01b0\u01a1ng c\u1ee7a hai s\u1ed1 \u0111\u00f3 c\u0169ng l\u00e0 0,8. h\u00e3y t\u00ecm s\u1ed1 b\u00e9. tr\u1ea3 l\u1eddi: s\u1ed1 b\u00e9 l\u00e0<br>\n\u0111\u1ed9 l\u1ec7ch pha c\u1ee7a hai dao \u0111\u1ed9ng \u0111i\u1ec1u h\u00f2a c\u00f9ng ph\u01b0\u01a1ng, c\u00f9ng t\u1ea7n s\u1ed1 v\u00e0 ng\u01b0\u1ee3c pha nhau l\u00e0<br>\nv\u1ebd s\u01a1 \u0111\u1ed3 cung ph\u1ea3n x\u1ea1<br>\ncong thuc tinh so do cung<br>\n\u0111\u01b0\u1eddng \u0111i v\u00e0 \u0111\u1ed9 d\u1eddi c\u00f3 c\u00f9ng s\u1ed1 \u0111o khi<br>\nbi\u1ec3u di\u1ec5n c\u00e1c cung c\u00f3 s\u1ed1 \u0111o<br>\ns\u1ed1 \u0111\u1ed9 m\u00e0 kim gi\u1edd c\u1ee7a \u0111\u1ed3ng h\u1ed3 di chuy\u1ec3n t\u1eeb 12h \u0111\u1ebfn 14h30 c\u00f9ng ng\u00e0y l\u00e0<br>\ns\u01a1 \u0111\u1ed3 \u0111\u01b0\u1eddng \u0111i c\u1ee7a cung ph\u1ea3n x\u1ea1<br>\nt\u00ednh \u0111\u1ed9 d\u00e0i cung c\u00f3 s\u1ed1 \u0111o<br>\ncung tr\u00f2n c\u00f3 s\u1ed1 \u0111o l\u00e0 pi<br>\ns\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac ph\u1ea7n c\u1ee9ng m\u00e1y t\u00ednh<br>\nnh\u00e0 cung c\u1ea5p \u0111\u1ed3 d\u00f9ng tr\u1ebb s\u01a1 sinh<br>\nc\u00f4ng th\u1ee9c t\u00ednh s\u1ed1 \u0111o cung l\u01b0\u1ee3ng gi\u00e1c<br>\ntrong c\u00f9ng m\u1ed9t n\u0103m m\u1eadt \u0111\u1ed9 d\u00e2n s\u1ed1<br>\n\u0111\u1ed5i s\u1ed1 \u0111o cung ra \u0111\u1ed9 ph\u00fat gi\u00e2y<br>\ns\u01a1 \u0111\u1ed3 c\u00e1c cung trong t\u1eed c\u1ea5m th\u00e0nh<br>\nt\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng s\u1ea3n l\u01b0\u1ee3ng \u0111i\u1ec7n 6 th\u00e1ng \u0111\u1ea7u n\u0103m 2015 so v\u1edbi c\u00f9ng k\u1ef3 n\u0103m 2014 \u1edf vn:<br>\nv\u1ebd s\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac ph\u1ea7n c\u1ee9ng c\u1ee7a m\u00e1y t\u00ednh<br>\ns\u01a1 \u0111\u1ed3 ngu\u1ed3n cung c\u1ea5p nito cho c\u00e2y<br>\nt\u00ednh s\u1ed1 \u0111o d\u00e2y cung<br>\nc\u00f3 n\u00ean mua \u0111\u1ed3 s\u01a1 sinh \u1edf con c\u01b0ng<br>\n\u0111\u1ed5i s\u1ed1 \u0111o c\u00e1c cung ra \u0111\u1ed9 ph\u00fat gi\u00e2y<br>\nc\u00e1ch \u0111\u1ed5i s\u1ed1 \u0111o cung ra \u0111\u1ed9<br>\nso v\u1edbi c\u00e1c n\u01b0\u1edbc c\u00f9ng v\u0129 \u0111\u1ed9<br>\nc\u00f3 bao nhi\u00eau \u0111i\u1ec3m m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n \u0111\u1ecbnh h\u01b0\u1edbng g\u1ed1c a th\u1ecfa m\u00e3n s\u1ed1 \u0111o cung am b\u1eb1ng<br>\nsai s\u1ed1 c\u1ee7a ph\u00e9p \u0111o \u0111\u1ed9 c\u1ee9ng l\u00f2 xo<br>\ncho ba v\u1eadt dao \u0111\u1ed9ng \u0111i\u1ec1u h\u00f2a c\u00f9ng bi\u00ean \u0111\u1ed9 a=10cm nh\u01b0ng t\u1ea7n s\u1ed1 kh\u00e1c nhau<br>\nso s\u00e1nh \u0111\u1ed9 c\u1ee9ng c\u1ee7a kim lo\u1ea1i<br>\nx\u00e1c \u0111\u1ecbnh \u0111i\u1ec3m cu\u1ed1i c\u1ee7a cung c\u00f3 s\u1ed1 \u0111o k2pi<br>\nhai v\u1ee3 ch\u1ed3ng c\u00f9ng \u0111\u1ee9ng t\u00ean s\u1ed5 \u0111\u1ecf<br>\ntrong c\u00f9ng 1 n\u0103m m\u1eadt \u0111\u1ed9 d\u00e2n s\u1ed1<br>\ns\u1ed1 \u0111i\u1ec3m n\u1eb1m tr\u00ean \u0111o\u1ea1n mn c\u00f3 bi\u00ean \u0111\u1ed9 c\u1ef1c \u0111\u1ea1i v\u00e0 c\u00f9ng pha v\u1edbi i<br>\ns\u01a1 \u0111\u1ed3 kh\u1ed1i h\u1ec7 th\u1ed1ng cung c\u1ea5p nhi\u00ean li\u1ec7u diesel<br>\ns\u01a1 \u0111\u1ed3 c\u00fang sao<br>\ng\u1ecdi a l\u00e0 s\u1ed1 \u0111o c\u1ee7a m\u1ed9t cung l\u01b0\u1ee3ng gi\u00e1c<br>\nt\u00ednh s\u1ed1 \u0111o cung l\u1edbn<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy b\u00e0i h\u1ee3p t\u00e1c c\u00f9ng ph\u00e1t tri\u1ec3n<br>\nc\u00f4ng th\u1ee9c t\u00ednh s\u1ed1 \u0111o cung l\u1edbp 9<br>\nchi\u1ebfc l\u00e1 cu\u1ed1i c\u00f9ng s\u01a1 \u0111\u1ed3 t\u01b0 duy<br>\ns\u1ed1 \u0111o cung b\u1eb1ng<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng thu\u1ed1c<br>\nso sanh toc do o cung ssd va hdd<br>\n2 cung b\u1eb1ng nhau th\u00ec c\u00f3 s\u1ed1 \u0111o b\u1eb1ng nhau<br>\nm\u1ed9t s\u1ed1 t\u00e1c ph\u1ea9m c\u1ee7a h\u1ecda s\u0129 nguy\u1ec5n \u0111\u1ed7 cung<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng c\u1ee7a honda<br>\nb\u1ea3ng so s\u00e1nh \u0111\u1ed9 c\u1ee9ng<br>\nnhi\u1ec7t \u0111\u1ed9 s\u00f4i c\u1ee7a este th\u1ea5p h\u01a1n h\u1eb3n so v\u1edbi ancol c\u00f3 c\u00f9ng ph\u00e2n t\u1eed kh\u1ed1i<br>\ns\u01a1 \u0111\u1ed3 h\u1ec7 th\u1ed1ng cung c\u1ea5p \u0111i\u1ec7n<br>\nc\u00f9ng \u0111\u1ee9ng t\u00ean s\u1ed5 \u0111\u1ecf<br>\nt\u00ecm 1 s\u1ed1 bi\u1ebft r\u1eb1ng nh\u00e2n s\u1ed1 \u0111\u00f3 v\u1edbi 4 \u0111\u01b0\u1ee3c bao nhi\u00eau tr\u1eeb \u0111i 6 c\u0169ng b\u1eb1ng s\u1ed1 \u0111\u00f3 nh\u00e2n v\u1edbi 3<br>\nt\u1ed5ng c\u1ee7a hai s\u1ed1 b\u1eb1ng 8 hi\u1ec7u c\u1ee7a ch\u00fang c\u0169ng b\u1eb1ng 8. t\u00ecm hai s\u1ed1 \u0111\u00f3<br>\nbi\u00ean \u0111\u1ed9 dao \u0111\u1ed9ng t\u1ed5ng h\u1ee3p c\u1ee7a hai dao \u0111\u1ed9ng \u0111i\u1ec1u h\u00f2a c\u00f9ng ph\u01b0\u01a1ng, c\u00f9ng t\u1ea7n s\u1ed1 c\u00f3 gi\u00e1 tr\u1ecb<br>\ns\u1ed1 \u0111o c\u1ee7a m\u1ed9t cung l\u01b0\u1ee3ng gi\u00e1c lu\u00f4n l\u00e0<br>\nnhi\u1ec1u l\u1ea7n c\u0169ng mu\u1ed1n m\u1edf l\u00f2ng \u0111\u1ea5y nh\u01b0ng s\u1ee3 v\u1eeba b\u00ean ai \u0111\u00f3 em l\u1ea1i quay v\u1ec1 \u0111\u00e2y<br>\nm\u1ed9t cung tr\u00f2n c\u00f3 s\u1ed1 \u0111o l\u00e0 45 \u0111\u1ed9<br>\n\u0111\u1ed5i s\u1ed1 \u0111o cung sang radian<br>\ns\u1ed1 \u0111i\u1ec7n tho\u1ea1i con c\u01b0ng \u0111\u1ed7 xu\u00e2n h\u1ee3p<br>\nch\u00e0ng trai \u0111i s\u1edd ng\u1ef1c 100 c\u00f4 g\u00e1i nh\u01b0ng \u0111\u1ebfn c\u00f4 cu\u1ed1i c\u00f9ng th\u00ec kh\u00f4ng ch\u1ec9 d\u1eebng l\u1ea1i \u1edf \u0111\u00f3<br>\nc\u01a1 s\u1edf s\u1ea3n xu\u1ea5t \u0111\u1ed3 th\u1edd c\u00fang<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy bu\u1ed5i h\u1ecdc cu\u1ed1i c\u00f9ng<br>\nv\u1ebd s\u01a1 \u0111\u1ed3 cung ph\u1ea3n x\u1ea1 t\u1ef1 v\u1ec7 \u1edf ng\u01b0\u1eddi<br>\ns\u01a1 \u0111\u1ed3 c\u1ed1 cung<br>\nv\u1edbi c\u00f9ng m\u1ed9t c\u01b0\u1eddng \u0111\u1ed9 \u00e2m tai ng\u01b0\u1eddi nghe th\u1ecbnh nh\u1ea5t v\u1edbi \u00e2m c\u00f3 t\u1ea7n s\u1ed1<br>\nt\u00ecm ph\u1ea7n t\u1eed l\u1edbn nh\u1ea5t c\u1ee7a ma tr\u1eadn c\u00f9ng ch\u1ec9 s\u1ed1 c\u1ee7a s\u1ed1 \u0111\u00f3.<br>\nch\u1ec9 s\u1ed1 \u0111\u1ed9 c\u1ee9ng c\u1ee7a c\u1ea7n c\u00e2u<br>\ns\u01a1 \u0111\u1ed3 h\u1eadu cung<br>\n\u0111\u1ed5i s\u1ed1 \u0111o c\u1ee7a c\u00e1c cung ra \u0111\u1ed9 ph\u00fat gi\u00e2y<br>\nv\u1ebd tr\u00ean c\u00f9ng m\u1ed9t h\u1ec7 tr\u1ee5c t\u1ecda \u0111\u1ed9 oxy \u0111\u1ed3 th\u1ecb c\u1ee7a c\u00e1c h\u00e0m s\u1ed1<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy v\u1ec1 n\u01b0\u1edbc c\u1ee9ng<br>\ns\u01a1 \u0111\u1ed3 cung ph\u1ea3n x\u1ea1 c\u00f3 \u0111i\u1ec1u ki\u1ec7n<br>\ns\u01a1 \u0111\u1ed3 cung vi\u1ec7t x\u00f4<br>\ns\u1ed1 \u0111o c\u1ee7a m\u1ed9t cung l\u01b0\u1ee3ng gi\u00e1c l\u00e0 g\u00ec<br>\nth\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt n\u00e0o c\u1ee7a \u1ed5 \u0111\u0129a c\u1ee9ng \u1ea3nh h\u01b0\u1edfng l\u1edbn nh\u1ea5t \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 c\u1ee7a m\u00e1y t\u00ednh?<br>\ns\u01a1 \u0111\u1ed3 b\u00e1t qu\u00e1i cung ly<br>\ntrong c\u00f9ng m\u1ed9t n\u0103m m\u1eadt \u0111\u1ed9 d\u00e2n s\u1ed1 \u1edf t\u1ec9nh a l\u00e0 2627 ng\u01b0\u1eddi<br>\nduy\u00ean ph\u1eadn l\u1eafm m\u1edbi c\u00f9ng \u0111i m\u1ed9t \u0111o\u1ea1n c\u00f2n so \u0111o chi k\u1ec3 ng\u1eafn hay d\u00e0i<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy cung c\u1ea7u<br>\nh\u1ec7 s\u1ed1 \u0111\u1ed9 c\u1ee9ng<br>\ncung cap do so sinh<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy b\u00e0i bu\u1ed5i h\u1ecdc cu\u1ed1i c\u00f9ng<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy trong t\u00f4i t\u00e0i gi\u1ecfi b\u1ea1n c\u0169ng th\u1ebf<br>\ns\u01a1 \u0111\u1ed3 cung ph\u1ea3n x\u1ea1 \u1edf ng\u01b0\u1eddi<br>\nso s\u00e1nh \u0111\u1ed9 c\u1ee9ng hb v\u00e0 hrc<br>\ns\u01a1 \u0111\u1ed3 cung th\u1ec3 thao ti\u00ean s\u01a1n<br>\ntr\u00ean \u0111\u01b0\u1eddng tr\u00f2n cung c\u00f3 s\u1ed1 \u0111o 1 rad l\u00e0<br>\nc\u00e1ch t\u00ednh s\u1ed1 \u0111o cung l\u1edbn<br>\nt\u00e2m s\u1ed1 \u0111o cung<br>\ns\u01a1 \u0111\u1ed3 ho\u00e0ng cung<br>\nt\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng kinh t\u1ebf 06 th\u00e1ng \u0111\u1ea7u n\u0103m 2015 so v\u1edbi c\u00f9ng k\u1ef3 n\u0103m 2014 l<br>\ngiao h\u01b0\u1edfng s\u1ed1 1 cung \u0111\u00f4 tr\u01b0\u1edfng<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng du l\u1ecbch<br>\nth\u00f4ng s\u1ed1 \u0111\u1ed9 c\u1ee9ng<br>\ns\u01a1 \u0111\u1ed3 k\u1ebf to\u00e1n doanh thu cung c\u1ea5p d\u1ecbch v\u1ee5<br>\ns\u01a1 \u0111\u1ed3 12 cung ho\u00e0ng \u0111\u1ea1o<br>\nso s\u00e1nh ph c\u1ee7a c\u00e1c dung d\u1ecbch c\u00f3 c\u00f9ng n\u1ed3ng \u0111\u1ed9 mol<br>\nt\u00ednh s\u1ed1 \u0111o cung c\u1ee7a h\u00ecnh qu\u1ea1t<br>\ns\u01a1 \u0111\u1ed3 c\u1ea5u t\u1ea1o t\u1eed cung<br>\nch\u1ec9 s\u1ed1 \u0111\u1ed9 c\u1ee9ng<br>\ns\u1ed1 \u0111o c\u1ee7a 1 cung l\u01b0\u1ee3ng gi\u00e1c<br>\ns\u01a1 \u0111\u1ed3 c\u1eedu cung<br>\ncung c\u00f3 s\u1ed1 \u0111o 1 rad<br>\nc\u00f4ng ty cung c\u1ea5p \u0111\u1ed3 s\u01a1 sinh<br>\nth\u1ebf n\u00e0o l\u00e0 s\u1ed1 \u0111o cung<br>\ns\u01a1 \u0111\u1ed3 cung m\u1ec7nh<br>\n\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng kinh t\u1ebf 06 th\u00e1ng \u0111\u1ea7u n\u0103m 2015 so v\u1edbi c\u00f9ng k\u1ef3 n\u0103m 2014<br>\nt\u00ednh s\u1ed1 \u0111o cung l\u01b0\u1ee3ng gi\u00e1c<br>\nch\u1ee9c n\u0103ng n\u00e0o sau \u0111\u00e2y cung c\u1ea5p c\u00e1c m\u1eabu s\u01a1 \u0111\u1ed3 c\u00f3 s\u1eb5n c\u00f3 th\u1ec3 t\u00f9y bi\u1ebfn \u0111\u01b0\u1ee3c?<br>\nc\u00f9ng \u0111\u1ee9ng t\u00ean tr\u00ean s\u1ed5 \u0111\u1ecf<br>\ns\u1ed1 \u0111o 3 v\u00f2ng c\u1ee7a 12 cung ho\u00e0ng \u0111\u1ea1o<br>\ns\u01a1 \u0111\u1ed3 cung c\u1ea7u<br>\ntrong c\u00f9ng m\u1ed9t n\u0103m m\u1eadt \u0111\u1ed9 d\u00e2n s\u1ed1 c\u1ee7a m\u1ed9t ph\u01b0\u1eddng n\u1ed9i th\u00e0nh<br>\nph\u00e2n t\u00edch s\u01a1 \u0111\u1ed3 cung ph\u1ea3n x\u1ea1<br>\ntr\u00ecnh b\u00e0y s\u01a1 \u0111\u1ed3 m\u1ed9t cung ph\u1ea3n x\u1ea1<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy n\u01b0\u1edbc c\u1ee9ng h\u00f3a 12<br>\ns\u01a1 \u0111\u1ed3 chu tr\u00ecnh qu\u1ea3n l\u00fd cung \u1ee9ng thu\u1ed1c<br>\ns\u01a1 \u0111\u1ed3 k\u1ebft n\u1ed1i ph\u1ea7n c\u1ee9ng plc<br>\ns\u1ed1 \u0111o cung v\u00e0 g\u00f3c l\u01b0\u1ee3ng gi\u00e1c<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy chi\u1ebfc la cu\u1ed1i c\u00f9ng<br>\nhai ng\u01b0\u1eddi c\u00f9ng \u0111\u1ee9ng t\u00ean tr\u00ean s\u1ed5 \u0111\u1ecf<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng \u0111\u01a1n gi\u1ea3n<br>\nv\u1ebd s\u01a1 \u0111\u1ed3 m\u1ed9t cung ph\u1ea3n x\u1ea1<br>\ncung c\u00f3 s\u1ed1 \u0111o 250 \u0111\u1ed9<br>\ns\u01a1 \u0111\u1ed3 ph\u1ea7n c\u1ee9ng m\u00e1y t\u00ednh<br>\nb\u1ea3n giao h\u01b0\u1edfng s\u1ed1 5 cung \u0111\u00f4 th\u1ee9<br>\nb\u1ea3n giao h\u01b0\u1edfng s\u1ed1 5 cung \u0111\u00f4 th\u1ee9 op. 67 &#8220;\u0111\u1ecbnh m\u1ec7nh&#8221;<br>\nt\u00ecm s\u1ed1 \u0111o cung l\u01b0\u1ee3ng gi\u00e1c<br>\ns\u01a1 \u0111\u1ed3 gh\u1ebf cung h\u1eefu ngh\u1ecb vi\u1ec7t x\u00f4<br>\ns\u1ed1 \u0111o cung nh\u1ecf b\u1eb1ng<br>\ns\u01a1 \u0111\u1ed3 cung c\u1ea5p \u0111i\u1ec7n h\u00ecnh tia<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng \u0111i\u1ec7n tho\u1ea1i apple<br>\nso do cung cap dien<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng c\u1ee7a trung nguy\u00ean<br>\nk\u1ec3 th\u1ee9 t\u1ef1 ch\u00ednh x\u00e1c s\u01a1 \u0111\u1ed3 cung ph\u1ea3n x\u1ea1 t\u1ef1 v\u1ec7 \u1edf ng\u01b0\u1eddi<br>\nc\u00e1ch t\u00ednh s\u1ed1 \u0111o d\u00e2y cung<br>\nc\u00f4ng th\u1ee9c t\u00ednh s\u1ed1 \u0111o \u0111\u1ed9 c\u1ee7a cung<br>\ns\u1ed1 \u0111o c\u1ee7a cung v\u00e0 g\u00f3c l\u01b0\u1ee3ng gi\u00e1c<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng gi\u1ea5y<br>\ns\u1ed1 \u0111o cung trong \u0111\u01b0\u1eddng tr\u00f2n<br>\ntrong dao \u0111\u1ed9ng \u0111i\u1ec1u h\u00f2a, nh\u1eefng \u0111\u1ea1i l\u01b0\u1ee3ng dao \u0111\u1ed9ng c\u00f9ng t\u1ea7n s\u1ed1 v\u1edbi li \u0111\u1ed9 l\u00e0<br>\ns\u1ed1 \u0111o c\u1ee7a cung tr\u00f2n<br>\ns\u01a1 \u0111\u1ed3 quan h\u1ec7 cung c\u1ea7u<br>\ns\u01a1 \u0111\u1ed3 s\u00e0ng l\u1ecdc ung th\u01b0 c\u1ed5 t\u1eed cung<br>\n\u0111\u1ed3 ch\u01a1i cho b\u00e9 s\u01a1 sinh con c\u01b0ng<br>\nso s\u00e1nh t\u1ed1c \u0111\u1ed9 \u1ed5 c\u1ee9ng ssd v\u00e0 hdd<br>\nso do nguyen ly cung cap dien<br>\nt\u00ednh \u0111\u1ed9 d\u00e0i cung tr\u00f2n c\u00f3 s\u1ed1 \u0111o \u0111\u00e3 cho<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy cung v\u00e0 g\u00f3c l\u01b0\u1ee3ng gi\u00e1c<br>\nhi\u1ec7u 2 g\u00f3c trong c\u00f9ng ph\u00eda c\u1ee7a 2 \u0111\u01b0\u1eddng th\u1eb3ng song song l\u00e0 22 \u0111\u1ed9. s\u1ed1 \u0111o g\u00f3c l\u1edbn l\u00e0<br>\nti\u1ebfp tuy\u1ebfn c\u1ee7a \u0111\u1ed3 th\u1ecb h\u00e0m s\u1ed1 c\u00f9ng v\u1edbi 2 ti\u1ec7m c\u1eadn t\u1ea1o th\u00e0nh m\u1ed9t tam gi\u00e1c c\u00f3 di\u1ec7n t\u00edch b\u1eb1ng<br>\ns\u1ed1 \u0111o cung l\u1edbn<br>\ns\u01a1 \u0111\u1ed3 cung c\u1ea5p \u0111i\u1ec7n<br>\ns\u01a1 \u0111\u1ed3 gh\u1ebf ng\u1ed3i cung v\u0103n h\u00f3a vi\u1ec7t x\u00f4<br>\nv\u1ebd s\u01a1 \u0111\u1ed3 t\u01b0 duy b\u00e0i bu\u1ed5i h\u1ecdc cu\u1ed1i c\u00f9ng<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy t\u00f4i t\u00e0i gi\u1ecfi b\u1ea1n c\u0169ng th\u1ebf<br>\ns\u1ed1 \u0111\u00f3 chu\u1ed7i cung \u1ee9ng c\u1ee7a vinamilk<br>\ntr\u00ean \u0111\u01b0\u1eddng tr\u00f2n \u0111\u1ecbnh h\u01b0\u1edbng g\u1ed1c a c\u00f3 bao nhi\u00eau \u0111i\u1ec3m m th\u1ecfa m\u00e3n s\u1ed1 \u0111o cung am = 30o + k45o, k \u2208 z?<br>\ns\u01a1 \u0111\u1ed3 b\u00e0o ch\u1ebf vi\u00ean nang c\u1ee9ng<br>\nso s\u00e1nh t\u1ed1c \u0111\u1ed9 \u1ed5 c\u1ee9ng<br>\nv\u1ebd s\u01a1 \u0111\u1ed3 cung c\u1ea7u<br>\ntr\u00ean \u0111\u01b0\u1eddng tr\u00f2n l\u01b0\u1ee3ng gi\u00e1c h\u00e3y bi\u1ec3u di\u1ec5n c\u00e1c cung c\u00f3 s\u1ed1 \u0111o<br>\ns\u01a1 \u0111\u1ed3 ho\u00e0ng cung trung qu\u1ed1c<br>\nv\u1ebd \u0111\u1ed3 th\u1ecb c\u1ee7a c\u00e1c h\u00e0m s\u1ed1 sau tr\u00ean c\u00f9ng<br>\ns\u01a1 \u0111\u1ed3 b\u00e1t qu\u00e1i cung kh\u00f4n<br>\n\u0111o ch\u1ec9 s\u1ed1 iq c\u1ee7a 12 cung ho\u00e0ng \u0111\u1ea1o<br>\ns\u01a1 \u0111\u1ed3 cung ph\u1ea3n x\u1ea1 ti\u1ebft n\u01b0\u1edbc b\u1ecdt<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy h\u1ee3p t\u00e1c c\u00f9ng ph\u00e1t tri\u1ec3n<br>\nc\u00e1ch t\u00ednh s\u1ed1 \u0111o c\u1ee7a cung tr\u00f2n<br>\ns\u01a1 \u0111\u1ed3 b\u00e0i chi\u1ebfc l\u00e1 cu\u1ed1i c\u00f9ng<br>\ns\u01a1 \u0111\u1ed3 b\u00e1t tr\u1ea1ch c\u1eedu cung<br>\ns\u01a1 \u0111\u1ed3 c\u00fang sao la h\u1ea7u<br>\ns\u01a1 \u0111\u1ed3 cung c\u1ea5p \u0111i\u1ec7n cho nh\u00e0 m\u00e1y<br>\nt\u1ea1i sao n\u01b0\u1edbc ta kh\u00f4ng c\u00f3 kh\u00ed h\u1eadu nhi\u1ec7t \u0111\u1edbi kh\u00f4 h\u1ea1n nh\u01b0 m\u1ed9t s\u1ed1 n\u01b0\u1edbc c\u00f3 c\u00f9ng v\u0129 \u0111\u1ed9<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng c\u1ee7a c\u00f4ng ty vinamilk<br>\nc\u00e1ch v\u1ebd s\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng<br>\n2 ng\u01b0\u1eddi c\u00f9ng \u0111\u1ee9ng t\u00ean s\u1ed5 \u0111\u1ecf<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng c\u1ee7a kh\u00e1ch s\u1ea1n<br>\ns\u1ed1 \u0111o c\u1ee7a m\u1ed9t cung l\u01b0\u1ee3ng gi\u00e1c<br>\nc\u00f4ng th\u1ee9c t\u00ednh s\u1ed1 \u0111o cung nh\u1ecf<br>\ns\u01a1 \u0111\u1ed3 cung ph\u1ea3n x\u1ea1 sinh 11<br>\ns\u01a1 \u0111\u1ed3 quy tr\u00ecnh cung c\u1ea5p d\u1ecbch v\u1ee5<br>\ns\u1ed1 \u0111\u1ed3 h\u1ec7 th\u1ed1ng cung c\u1ea5p \u0111i\u1ec7n tr\u00ean \u00f4 t\u00f4<br>\ns\u01a1 \u0111\u1ed3 nguy\u00ean l\u00fd cung c\u1ea5p \u0111i\u1ec7n<br>\ns\u01a1 \u0111\u1ed3 chu\u1ed7i cung \u1ee9ng c\u1ee7a dell<br>\ns\u1ed1 \u0111i\u1ec3m c\u00f3 bi\u00ean \u0111\u1ed9 c\u1ef1c \u0111\u1ea1i v\u00e0 c\u00f9ng pha v\u1edbi ngu\u1ed3n<br>\nnh\u00e2n t\u1ed1 n\u00e0o l\u00e0 c\u01a1 s\u1edf h\u00ecnh th\u00e0nh n\u00ean gi\u00e1 c\u1ea3 c\u1ee7a h\u00e0ng h\u00f3a: cung &#8211; c\u1ea7u hay gi\u00e1 tr\u1ecb c\u1ee7a h\u00e0ng h\u00f3a \u0111\u00f3?<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy quy lu\u1eadt cung c\u1ea7u<br>\nc\u00e1ch t\u00ednh s\u1ed1 \u0111o cung l\u01b0\u1ee3ng gi\u00e1c<br>\n\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn G\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung l\u00e0 g\u00ec? C\u00e1ch t\u00ednh s\u1ed1 \u0111o cung nh\u01b0 th\u1ebf n\u00e0o? So s\u00e1nh 2 cung. \u0110\u00f3 l\u00e0 nh\u1eefng l\u00fd thuy\u1ebft c\u00f3 trong b\u00e0i gi\u1ea3ng g\u00f3c \u1edf t\u00e2m s\u1ed1 \u0111o cung. \u0110\u00e2y l\u00e0 ph\u1ea7n ki\u1ebfn th\u1ee9c kh\u00e1 quan tr\u1ecdng. V\u1eady h\u00e3y c\u00f9ng Vietlearn t\u1ed5ng h\u1ee3p [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2302,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[9],"tags":[],"class_list":["post-1067","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-toan-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1067","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=1067"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1067\/revisions"}],"predecessor-version":[{"id":25709,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1067\/revisions\/25709"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media\/2302"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=1067"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=1067"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=1067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}