{"id":2717,"date":"2021-10-14T21:25:53","date_gmt":"2021-10-14T14:25:53","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=2717"},"modified":"2021-10-14T22:11:06","modified_gmt":"2021-10-14T15:11:06","slug":"nhan-hai-so-nguyen-khac-dau-toan-lop-6-cung-tre-vui-hoc","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/nhan-hai-so-nguyen-khac-dau-toan-lop-6-cung-tre-vui-hoc\/","title":{"rendered":"Nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u \u2013 to\u00e1n l\u1edbp 6. C\u00f9ng tr\u1ebb vui h\u1ecdc"},"content":{"rendered":"\n<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n<p>Nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u l\u00e0 m\u1ed9t trong nh\u1eefng b\u00e0i t\u1eadp v\u00e0 l\u00fd thuy\u1ebft kh\u00f3 nh\u1ea5t. Trong ch\u01b0\u01a1ng tr\u00ecnh gi\u00e1o d\u1ee5c to\u00e1n l\u1edbp 6. H\u00e3y \u0111i t\u00ecm hi\u1ec3u v\u1ec1 quy t\u1eafc nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u. C\u0169ng nh\u01b0 \u0111i t\u00ecm l\u1eddi gi\u1ea3i cho nh\u1eefng b\u00e0i to\u00e1n trong ch\u1ee7 \u0111\u1ec1 n\u00e0y nh\u00e9!<\/p>\n\n\n\n<p>Quy t\u1eafc nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u<\/p>\n\n\n\n<p>\u0110\u1ec3 nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u, ta \u0111\u1eb7t d\u1ea5u tr\u1eeb tr\u01b0\u1edbc t\u00edch gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a hai s\u1ed1 nguy\u00ean c\u1ea7n t\u00ednh.<\/p>\n\n\n\n<p>D\u1ec5 hi\u1ec3u h\u01a1n, toppy s\u1ebd t\u1ed5ng h\u1ee3p quy t\u1eafc nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u th\u00e0nh c\u00e1c b\u01b0\u1edbc nh\u01b0 sau:<\/p>\n\n\n\n<p>B\u01b0\u1edbc 1: T\u00ecm gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a hai s\u1ed1 nguy\u00ean c\u1ea7n t\u00ednh<\/p>\n\n\n\n<p>B\u01b0\u1edbc 2: T\u00ecm t\u00edch c\u1ee7a hai gi\u00e1 tr\u1ecb tr\u00ean (\u1edf b\u01b0\u1edbc 1)<\/p>\n\n\n\n<p>B\u01b0\u1edbc 3: \u0110\u1eb7t d\u1ea5u tr\u1eeb tr\u01b0\u1edbc t\u00edch v\u1eeba t\u00ecm \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<p>Quy t\u1eafc nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u<\/p>\n\n\n\n<p>L\u01b0u \u00fd:<\/p>\n\n\n\n<p>T\u00edch c\u1ee7a hai s\u1ed1 nguy\u00ean tr\u00e1i d\u1ea5u b\u1ea5t k\u1ef3 kh\u00e1c 0 lu\u00f4n mang d\u1ea5u tr\u1eeb.<\/p>\n\n\n\n<p>Ta c\u00f3: a . (-b) = \u2013 X<\/p>\n\n\n\n<p>T\u00edch c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean b\u1ea5t k\u1ef3 v\u1edbi 0 \u0111\u1ec1u c\u00f3 k\u1ebft qu\u1ea3 l\u00e0 0<\/p>\n\n\n\n<p>Ta c\u00f3: a . 0 = 0<\/p>\n\n\n\n<p>V\u00ed d\u1ee5 \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 nguy\u00ean t\u1eafc nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u. Ta c\u00f3:<\/p>\n\n\n\n<p>3.(-10) = \u2013 (|3|. |-10|) = -(3.10) = -30<\/p>\n\n\n\n<p>Trong ph\u00e9p t\u00ednh tr\u00ean, ta c\u00f3 3 b\u01b0\u1edbc c\u1ea7n ho\u00e0n th\u00e0nh:<\/p>\n\n\n\n<p>B\u01b0\u1edbc 1: t\u00ecm gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a 3 v\u00e0 -10. Ta c\u00f3 |3| = 3 v\u00e0 |-10| = 10<\/p>\n\n\n\n<p>B\u01b0\u1edbc 2: T\u00ecm t\u00edch c\u1ee7a 3 v\u00e0 10<\/p>\n\n\n\n<p>B\u01b0\u1edbc 3: \u0110\u1eb7t d\u1ea5u tr\u1eeb tr\u01b0\u1edbc gi\u00e1 tr\u1ecb tr\u00ean. K\u1ebft qu\u1ea3 thu \u0111\u01b0\u1ee3c l\u00e0 \u2013 30<\/p>\n\n\n\n<p>C\u00e1c d\u1ea1ng to\u00e1n c\u01a1 b\u1ea3n \u00e1p d\u1ee5ng quy t\u1eafc nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u<\/p>\n\n\n\n<p>D\u1ea1ng 1: T\u00ednh to\u00e1n \u0111\u01a1n gi\u1ea3n<\/p>\n\n\n\n<p>C\u00e1c d\u1ea1ng to\u00e1n c\u01a1 b\u1ea3n \u00e1p d\u1ee5ng quy t\u1eafc nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u<\/p>\n\n\n\n<p>Ph\u01b0\u01a1ng ph\u00e1p l\u00e0m b\u00e0i: \u00c1p d\u1ee5ng nguy\u00ean t\u1eafc t\u00ecm t\u00edch c\u1ee7a hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u \u0111\u1ec3 l\u00e0m b\u00e0i t\u1eadp<\/p>\n\n\n\n<p>V\u00ed d\u1ee5: B\u00e0i t\u1eadp t\u00ednh c\u00e1c ph\u00e9p t\u00ednh sau:<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"123\"><li>(-486)<\/li><\/ol>\n\n\n\n<p>-925. 64<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"488\"><li>252<\/li><li>(-522)<\/li><\/ol>\n\n\n\n<p>\u0110\u00e1p \u00e1n tham kh\u1ea3o:<\/p>\n\n\n\n<p>-59778<\/p>\n\n\n\n<p>-59200<\/p>\n\n\n\n<p>122976<\/p>\n\n\n\n<p>-64728<\/p>\n\n\n\n<p>D\u1ea1ng 2: C\u00e1c b\u00e0i to\u00e1n \u0111\u01b0a v\u1ec1 d\u1ea1ng nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u<\/p>\n\n\n\n<p>C\u00e1c d\u1ea1ng to\u00e1n c\u01a1 b\u1ea3n \u00e1p d\u1ee5ng quy t\u1eafc<\/p>\n\n\n\n<p>Ph\u01b0\u01a1ng ph\u00e1p l\u00e0m b\u00e0i: D\u1ef1a v\u00e0o y\u00eau c\u1ea7u m\u00e0 \u0111\u1ec1 b\u00e0i \u0111\u01b0a ra, k\u1ebft h\u1ee3p nguy\u00ean t\u1eafc nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u. \u0110\u01b0a v\u1ec1 d\u1ea1ng t\u00ednh to\u00e1n c\u01a1 b\u1ea3n v\u00e0 gi\u1ea3i nh\u01b0 d\u1ea1ng 1.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5: \u0110i\u1ec1n s\u1ed1 c\u00f2n thi\u1ebfu v\u00e0o b\u1ea3ng sau<\/p>\n\n\n\n<p>a 12 8 56 2<\/p>\n\n\n\n<p>b 18 42 24 10<\/p>\n\n\n\n<p>a. (-b) ??? ??? ??? ???<\/p>\n\n\n\n<p>G\u1ee3i \u00fd \u0111\u00e1p \u00e1n tham kh\u1ea3o:<\/p>\n\n\n\n<p>a 12 8 56 2<\/p>\n\n\n\n<p>b 18 42 24 10<\/p>\n\n\n\n<p>a. (-b) -216 -336 -1344 -20<\/p>\n\n\n\n<p>H\u01b0\u1edbng d\u1eabn gi\u1ea3i b\u00e0i t\u1eadp nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u s\u00e1ch gi\u00e1o khoa to\u00e1n 6<\/p>\n\n\n\n<p>B\u00e0i 73 (trang 89 SGK To\u00e1n 6 T\u1eadp 1):<\/p>\n\n\n\n<p>H\u01b0\u1edbng d\u1eabn gi\u1ea3i b\u00e0i t\u1eadp nh\u00e2n hai s\u1ed1 nguy\u00ean s\u00e1ch gi\u00e1o khoa to\u00e1n 6<\/p>\n\n\n\n<p>B\u00e0i 74 (trang 89 SGK To\u00e1n 6 T\u1eadp 1):<\/p>\n\n\n\n<p>H\u01b0\u1edbng d\u1eabn gi\u1ea3i b\u00e0i t\u1eadp nh\u00e2n hai s\u1ed1 nguy\u00ean s\u00e1ch gi\u00e1o khoa to\u00e1n 6<\/p>\n\n\n\n<p>B\u00e0i 75 (trang 89 SGK To\u00e1n 6 T\u1eadp 1):<\/p>\n\n\n\n<p>H\u01b0\u1edbng d\u1eabn gi\u1ea3i b\u00e0i t\u1eadp nh\u00e2n hai s\u1ed1 nguy\u00ean s\u00e1ch gi\u00e1o khoa to\u00e1n 6<\/p>\n\n\n\n<p>B\u00e0i 76 (trang 89 SGK To\u00e1n 6 T\u1eadp 1):<\/p>\n\n\n\n<p>H\u01b0\u1edbng d\u1eabn gi\u1ea3i b\u00e0i t\u1eadp nh\u00e2n hai s\u1ed1 nguy\u00ean s\u00e1ch gi\u00e1o khoa to\u00e1n 6<\/p>\n\n\n\n<p>B\u00e0i 77 (trang 89 SGK To\u00e1n 6 T\u1eadp 1):<\/p>\n\n\n\n<p>H\u01b0\u1edbng d\u1eabn gi\u1ea3i b\u00e0i t\u1eadp nh\u00e2n hai s\u1ed1 nguy\u00ean s\u00e1ch gi\u00e1o khoa to\u00e1n 6<\/p>\n\n\n\n<p>M\u1ed9t s\u1ed1 th\u00f3i quen t\u1ed1t gi\u00fap con t\u1eadp trung, n\u00e2ng cao n\u0103ng l\u1ef1c h\u1ecdc to\u00e1n<\/p>\n\n\n\n<p>B\u00ed quy\u1ebft \u0111\u1ec3 h\u1ecdc t\u1ed1t to\u00e1n h\u1ecdc kh\u00f4ng ch\u1ec9 \u0111\u1ed1i v\u1edbi to\u00e1n l\u1edbp 6. M\u00e0 c\u00f2n l\u00e0 b\u1ed9 m\u00f4n to\u00e1n trung h\u1ecdc ph\u1ed5 th\u00f4ng n\u00f3i chung l\u00e0 s\u1ef1 t\u1eadp trung. Tuy nhi\u00ean, m\u1ea5t t\u1eadp trung l\u1ea1i l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 g\u00e2y kh\u00f3 kh\u0103n cho c\u1ea3 nh\u1eefng <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a> xu\u1ea5t s\u1eafc nh\u1ea5t. \u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y, gi\u00fap c\u00e1c con n\u00e2ng cao tr\u00ecnh \u0111\u1ed9 to\u00e1n h\u1ecdc.<\/p>\n\n\n\n<p>L\u1eadp <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">k\u1ebf ho\u1ea1ch h\u1ecdc t\u1eadp<\/a> chi ti\u1ebft c\u00f9ng con<\/p>\n\n\n\n<p>M\u1ed9t trong nh\u1eefng b\u00ed quy\u1ebft mang \u0111\u1ebfn hi\u1ec7u qu\u1ea3 t\u1ed1t nh\u1ea5t l\u00e0 l\u1eadp th\u1eddi gian bi\u1ec3u cho con. Ho\u1eb7c h\u01b0\u1edbng d\u1eabn con l\u1eadp ra m\u1ed9t <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">k\u1ebf ho\u1ea1ch h\u1ecdc t\u1eadp<\/a><\/p>\n\n\n\n<p>Tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u h\u1ecdc, c\u00e1c em c\u1ea7n l\u00ean k\u1ebf ho\u1ea1ch r\u00f5 r\u00e0ng cho qu\u00e1 tr\u00ecnh <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc t\u1eadp<\/a>. V\u00ed d\u1ee5: c\u00e1c em c\u00f3 th\u1ec3 h\u1ecdc m\u00f4n to\u00e1n trong v\u00f2ng 90 ph\u00fat. Sau \u0111\u00f3 chuy\u1ec3n sang \u00f4n luy\u1ec7n ti\u1ebfng Anh. R\u1ed3i quay l\u1ea1i ti\u1ebfp t\u1ee5c r\u00e8n luy\u1ec7n m\u00f4n to\u00e1n. Vi\u1ec7c l\u1eadp th\u1eddi gian bi\u1ec3u gi\u00fap c\u00e1c con \u0111\u1ecbnh h\u00ecnh \u0111\u01b0\u1ee3c vi\u1ec7c h\u1ecdc. Ph\u00e2n b\u1ed5 th\u1eddi gian v\u00e0 ki\u1ebfn th\u1ee9c \u1edf m\u1ed7i m\u00f4n h\u1ecdc.<\/p>\n\n\n\n<p>B\u00ean c\u1ea1nh \u0111\u00f3, c\u00e1c con n\u00ean c\u00f3 nh\u1eefng kho\u1ea3ng ngh\u1ec9 ng\u01a1i sau m\u1ed9t th\u1eddi gian <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc t\u1eadp<\/a>. Theo ph\u01b0\u01a1ng ph\u00e1p qu\u1ea3 c\u00e0 chua pomodoro, c\u00e1c con c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng th\u1eddi gian h\u1ecdc t\u1eadp v\u00e0 ngh\u1ec9 ng\u01a1i xen k\u1ebd. Nh\u01b0 c\u1ee9 sau m\u1ed7i 25 ph\u00fat l\u00e0m vi\u1ec7c th\u1ef1c s\u1ef1 t\u1eadp trung, c\u00e1c con n\u00ean d\u00e0nh ra m\u1ed9t kho\u1ea3ng th\u1eddi gian ng\u1eafn \u0111\u1ec3 ngh\u1ec9 ng\u01a1i. Nh\u01b0 v\u1eady, con s\u1ebd v\u1eeba c\u00f3 m\u1ed9t kho\u1ea3ng th\u1eddi gian \u0111\u1ec3 h\u1ecdc t\u1eadp hi\u1ec7u qu\u1ea3. L\u1ea1i v\u1eeba duy tr\u00ec \u0111\u01b0\u1ee3c h\u1ee9ng th\u00fa trong h\u1ecdc t\u1eadp c\u0169ng nh\u01b0 t\u1eadp trung.<\/p>\n\n\n\n<p>Kh\u00f4ng n\u00ean d\u00e0nh qu\u00e1 nhi\u1ec1u th\u1eddi gian cho m\u1ed9t m\u00f4n h\u1ecdc. V\u00ec n\u1ebfu c\u00e1c con h\u1ecdc m\u1ed9t m\u00f4n qu\u00e1 l\u00e2u. C\u00e1c con s\u1ebd kh\u00f4ng ch\u1ec9 l\u00e0m m\u1ea5t \u0111i tinh th\u1ea7n h\u1ecdc t\u1eadp v\u00e0 s\u1ef1 nhi\u1ec7t huy\u1ebft. M\u00e0 c\u00f2n kh\u00f4ng t\u1ea1o \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 nh\u01b0 mong \u0111\u1ee3i. V\u00ec n\u00e3o b\u1ed9 s\u1ebd ch\u00e1n n\u1ea3n v\u00e0 b\u00e3o h\u00f2a l\u01b0\u1ee3ng ki\u1ebfn th\u1ee9c c\u00e1c con \u0111ang c\u1ed1 ti\u1ebfp thu.<\/p>\n\n\n\n<p>L\u1eadp k\u1ebf ho\u1ea1ch h\u1ecdc t\u1eadp chi ti\u1ebft c\u00f9ng con<\/p>\n\n\n\n<p>Thay \u0111\u1ed5i ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc t\u1eadp<\/p>\n\n\n\n<p>Ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc t\u1eadp kh\u00f4ng ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 l\u00e0 nguy\u00ean nh\u00e2n quan tr\u1ecdng g\u00e2y ra vi\u1ec7c m\u1ea5t t\u1eadp trung c\u1ee7a con. Tr\u00ean th\u1ef1c t\u1ebf, ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng nhi\u1ec1u nh\u1ea5t l\u00e0 \u0111\u1ecdc. Th\u00f4ng th\u01b0\u1eddng, khi mu\u1ed1n h\u1ecdc m\u1ed9t d\u1ea1ng to\u00e1n hay m\u1ed9t l\u01b0\u1ee3ng ki\u1ebfn th\u1ee9c m\u1edbi. C\u00e1c em h\u1ecdc sinh th\u01b0\u1eddng c\u00f3 xu th\u1ebf m\u1edf s\u00e1ch v\u1edf ra v\u00e0 \u0111\u1ecdc. \u0110\u00f3 l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p hay, kh\u00f4ng t\u1ed1n qu\u00e1 nhi\u1ec1u th\u1eddi gian. Cung c\u1ea5p ki\u1ebfn th\u1ee9c ch\u00ednh x\u00e1c v\u00e0 \u0111em l\u1ea1i k\u1ebft qu\u1ea3 ngay l\u1eadp t\u1ee9c.<\/p>\n\n\n\n<p>Tuy nhi\u00ean, kh\u00f4ng n\u00ean l\u1ea1m d\u1ee5ng qu\u00e1 nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc t\u1eadp n\u00e0y. V\u00ec nh\u01b0 v\u1eady, n\u00e3o b\u1ed9 kh\u00f4ng \u0111\u01b0\u1ee3c l\u00e0m quen v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc t\u1eadp kh\u00e1c nhau. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y ra c\u1ea3m gi\u00e1c nh\u00e0m ch\u00e1n v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng t\u1eadp trung c\u1ee7a tr\u1ebb.<\/p>\n\n\n\n<p>Mu\u1ed1n kh\u1eafc ph\u1ee5c \u0111i\u1ec1u n\u00e0y, c\u00e1c con n\u00ean thay \u0111\u1ed5i ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc t\u1eadp th\u01b0\u1eddng xuy\u00ean. V\u00ed d\u1ee5, c\u00e1c con c\u00f3 th\u1ec3 th\u1eed ph\u01b0\u01a1ng ph\u00e1p l\u1eafng nghe, xem video clip, ghi ch\u00e9p,\u2026<\/p>\n\n\n\n<p>Thay \u0111\u1ed5i ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc t\u1eadp<\/p>\n\n\n\n<p>L\u1eddi k\u1ebft<\/p>\n\n\n\n<p>Tr\u00ean \u0111\u00e2y l\u00e0 t\u1ed5ng h\u1ee3p l\u00fd thuy\u1ebft v\u00e0 h\u01b0\u1edbng d\u1eabn gi\u1ea3i b\u00e0i t\u1eadp ch\u1ee7 \u0111\u1ec1 nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u cho c\u00e1c em h\u1ecdc sinh l\u1edbp 6. B\u00ean c\u1ea1nh \u0111\u00f3, Vietlearn c\u0169ng \u0111\u01b0a ra 1 b\u00ed quy\u1ebft nh\u1ecf gi\u00fap c\u00e1c con t\u1eadp trung t\u1ed1t h\u01a1n, n\u00e2ng cao n\u0103ng l\u1ef1c h\u1ecdc to\u00e1n. \u0110\u1ec3 bi\u1ebft th\u00eam nhi\u1ec1u b\u00ed quy\u1ebft h\u01a1n. M\u1eddi ph\u1ee5 huynh v\u00e0 c\u00e1c con tham kh\u1ea3o th\u00eam c\u00e1c b\u00e0i vi\u1ebft kh\u00e1c c\u1ee7a Vietlearn trong m\u1ee5c to\u00e1n h\u1ecdc l\u1edbp 6 nh\u00e9! Ch\u00fac c\u00e1c con h\u1ecdc t\u1ed1t ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n l\u1edbp 6!<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>Quy t\u1eafc nh\u00e2n hai s\u1ed1 nguy\u00ean c\u00f9ng d\u1ea5u \u2013 chinh ph\u1ee5c to\u00e1n l\u1edbp 6<\/p>\n\n\n\n<p>Ph\u01b0\u01a1ng ph\u00e1p d\u1ea1y tr\u1ebb l\u1edbp 2: 4 nguy\u00ean t\u1eafc ba m\u1eb9 ph\u1ea3i ghi n<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn Nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u l\u00e0 m\u1ed9t trong nh\u1eefng b\u00e0i t\u1eadp v\u00e0 l\u00fd thuy\u1ebft kh\u00f3 nh\u1ea5t. Trong ch\u01b0\u01a1ng tr\u00ecnh gi\u00e1o d\u1ee5c to\u00e1n l\u1edbp 6. H\u00e3y \u0111i t\u00ecm hi\u1ec3u v\u1ec1 quy t\u1eafc nh\u00e2n hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u. C\u0169ng nh\u01b0 \u0111i t\u00ecm l\u1eddi gi\u1ea3i cho nh\u1eefng b\u00e0i to\u00e1n trong [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[9,4],"tags":[],"class_list":["post-2717","post","type-post","status-publish","format-standard","hentry","category-toan-hoc","category-trung-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/2717","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=2717"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/2717\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=2717"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=2717"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=2717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}