{"id":20039,"date":"2021-12-17T13:20:39","date_gmt":"2021-12-17T06:20:39","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=20039"},"modified":"2021-12-17T13:24:18","modified_gmt":"2021-12-17T06:24:18","slug":"huong-trinh-duong-elip","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/huong-trinh-duong-elip\/","title":{"rendered":"PH\u01af\u01a0NG TR\u00ccNH \u0110\u01af\u1edcNG ELIP"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<p><strong>I \u2013 LY\u0301 THUY\u00ca\u0301T<\/strong><\/p>\n<p><strong><em>1)\u0110\u1ecbnh ngh\u0129a<\/em><\/strong>: Cho hai \u0111i\u1ec3m c\u1ed1 \u0111\u1ecbnh <img decoding=\"async\" width=\"53\" height=\"31\" class=\"wp-image-20040\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_256-10.png\" alt=\"IMG_256\"> v\u1edbi <img decoding=\"async\" width=\"137\" height=\"34\" class=\"wp-image-20041\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_257-9.png\" alt=\"IMG_257\"> v\u00e0 h\u1eb1ng s\u1ed1 <img decoding=\"async\" width=\"48\" height=\"19\" class=\"wp-image-20042\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_258-10.png\" alt=\"IMG_258\"> Elip <img loading=\"lazy\" decoding=\"async\" width=\"36\" height=\"34\" class=\"wp-image-20043\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_259-9.png\" alt=\"IMG_259\"> l\u00e0 t\u1eadp h\u1ee3p c\u00e1c \u0111i\u1ec3m <img loading=\"lazy\" decoding=\"async\" width=\"28\" height=\"22\" class=\"wp-image-20044\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_260-10.png\" alt=\"IMG_260\"> th\u1ecfa m\u00e3n <img loading=\"lazy\" decoding=\"async\" width=\"134\" height=\"31\" class=\"wp-image-20045\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_261-7.png\" alt=\"IMG_261\"> .<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"235\" height=\"247\" class=\"wp-image-20046\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_262-8.png\" alt=\"IMG_262\"><\/p>\n<p>C\u00e1c \u0111i\u1ec3m <img loading=\"lazy\" decoding=\"async\" width=\"53\" height=\"31\" class=\"wp-image-20047\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_263-9.png\" alt=\"IMG_263\"> l\u00e0 ti\u00eau \u0111i\u1ec3m c\u1ee7a <img loading=\"lazy\" decoding=\"async\" width=\"42\" height=\"34\" class=\"wp-image-20048\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_264-8.png\" alt=\"IMG_264\"> Kho\u1ea3ng c\u00e1ch <img loading=\"lazy\" decoding=\"async\" width=\"81\" height=\"31\" class=\"wp-image-20049\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_265-8.png\" alt=\"IMG_265\"> l\u00e0 ti\u00eau c\u1ef1 c\u1ee7a <img loading=\"lazy\" decoding=\"async\" width=\"42\" height=\"34\" class=\"wp-image-20050\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_266-8.png\" alt=\"IMG_266\"> <img loading=\"lazy\" decoding=\"async\" width=\"85\" height=\"31\" class=\"wp-image-20051\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_267-9.png\" alt=\"IMG_267\"> \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u00e1n k\u00ednh qua ti\u00eau.<\/p>\n<p><strong><em>2) Ph\u01b0\u01a1ng tr\u00ecnh ch\u00ednh t\u1eafc c\u1ee7a elip: <\/em><\/strong><\/p>\n<p>V\u1edbi <img loading=\"lazy\" decoding=\"async\" width=\"156\" height=\"34\" class=\"wp-image-20052\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_268-9.png\" alt=\"IMG_268\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_268-9.png 156w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_268-9-150x34.png 150w\" sizes=\"(max-width: 156px) 100vw, 156px\" \/> :<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"274\" height=\"56\" class=\"wp-image-20053\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_269-9.png\" alt=\"IMG_269\"> trong \u0111\u00f3 <img loading=\"lazy\" decoding=\"async\" width=\"98\" height=\"28\" class=\"wp-image-20054\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_270-7.png\" alt=\"IMG_270\"><\/p>\n<p>(1) \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u01b0\u01a1ng tr\u00ecnh ch\u00ednh t\u1eafc c\u1ee7a <img loading=\"lazy\" decoding=\"async\" width=\"42\" height=\"34\" class=\"wp-image-20055\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_271-9.png\" alt=\"IMG_271\"><\/p>\n<p><strong><em>3) H\u00ecnh d\u1ea1ng v\u00e0 t\u00ednh ch\u1ea5t c\u1ee7a elip:<\/em><\/strong><\/p>\n<p>Elip c\u00f3 ph\u01b0\u01a1ng tr\u00ecnh (1) nh\u1eadn c\u00e1c tr\u1ee5c t\u1ecda \u0111\u1ed9 l\u00e0 tr\u1ee5c \u0111\u1ed1i x\u1ee9ng v\u00e0 g\u1ed1c t\u1ecda \u0111\u1ed9 l\u00e0m t\u00e2m \u0111\u1ed1i x\u1ee9ng.<\/p>\n<p>+ Ti\u00eau \u0111i\u1ec3m: Ti\u00eau \u0111i\u1ec3m tr\u00e1i <img loading=\"lazy\" decoding=\"async\" width=\"85\" height=\"34\" class=\"wp-image-20056\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_272-9.png\" alt=\"IMG_272\"> ti\u00eau \u0111i\u1ec3m ph\u1ea3i <img loading=\"lazy\" decoding=\"async\" width=\"70\" height=\"34\" class=\"wp-image-20057\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_273-8.png\" alt=\"IMG_273\"><\/p>\n<p>+ C\u00e1c \u0111\u1ec9nh : <img loading=\"lazy\" decoding=\"async\" width=\"325\" height=\"34\" class=\"wp-image-20058\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_274-9.png\" alt=\"IMG_274\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_274-9.png 325w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_274-9-300x31.png 300w\" sizes=\"(max-width: 325px) 100vw, 325px\" \/><\/p>\n<p>+ Tr\u1ee5c l\u1edbn : <img loading=\"lazy\" decoding=\"async\" width=\"85\" height=\"31\" class=\"wp-image-20059\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_275-8.png\" alt=\"IMG_275\"> , n\u1eb1m tr\u00ean tr\u1ee5c <img loading=\"lazy\" decoding=\"async\" width=\"34\" height=\"28\" class=\"wp-image-20060\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_276-9.png\" alt=\"IMG_276\"> tr\u1ee5c nh\u1ecf : <img loading=\"lazy\" decoding=\"async\" width=\"84\" height=\"31\" class=\"wp-image-20061\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_277-9.png\" alt=\"IMG_277\"> , n\u1eb1m tr\u00ean tr\u1ee5c <img loading=\"lazy\" decoding=\"async\" width=\"34\" height=\"28\" class=\"wp-image-20062\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_278-9.png\" alt=\"IMG_278\"><\/p>\n<p>+ H\u00ecnh ch\u1eef nh\u1eadt t\u1ea1o b\u1edfi c\u00e1c \u0111\u01b0\u1eddng th\u1eb3ng <img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"28\" class=\"wp-image-20063\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_279-7.png\" alt=\"IMG_279\"> g\u1ecdi l\u00e0 <em>h\u00ecnh ch\u1eef nh\u1eadt c\u01a1 s\u1edf<\/em>.<\/p>\n<p>+ T\u00e2m sai : <img loading=\"lazy\" decoding=\"async\" width=\"76\" height=\"53\" class=\"wp-image-20064\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_280-9.png\" alt=\"IMG_280\"><\/p>\n<p>+ B\u00e1n k\u00ednh qua ti\u00eau \u0111i\u1ec3m c\u1ee7a \u0111i\u1ec3m <img loading=\"lazy\" decoding=\"async\" width=\"101\" height=\"34\" class=\"wp-image-20065\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_281-8.png\" alt=\"IMG_281\"> thu\u1ed9c <img loading=\"lazy\" decoding=\"async\" width=\"36\" height=\"34\" class=\"wp-image-20066\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_282-9.png\" alt=\"IMG_282\"> l\u00e0:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"421\" height=\"53\" class=\"wp-image-20067\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_283-8.png\" alt=\"IMG_283\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_283-8.png 421w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_283-8-300x38.png 300w\" sizes=\"(max-width: 421px) 100vw, 421px\" \/><\/p>\n<p><strong>II \u2013 DA\u0323NG TOA\u0301N<\/strong><\/p>\n<p><strong>1. Da\u0323ng 1: <\/strong>X\u00e1c \u0111\u1ecbnh \u0111\u1ed9 d\u00e0i c\u00e1c tr\u1ee5c khi cho s\u1eb5n ph\u01b0\u01a1ng tr\u00ecnh elip.<\/p>\n<p><strong>a) Ph\u01b0\u01a1ng pha\u0301p gia\u0309i t\u01b0\u0323 lu\u00e2\u0323n<\/strong>.<\/p>\n<p>T\u1eeb ph\u01b0\u01a1ng tr\u00ecnh ch\u00ednh t\u1eafc c\u1ee7a <a id=\"post-20039-MTBlankEqn\"><\/a> <img loading=\"lazy\" decoding=\"async\" width=\"164\" height=\"56\" class=\"wp-image-20068\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_284-8.png\" alt=\"IMG_284\"> ta c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c:<\/p>\n<p>+ C\u00e1c \u0111\u1ec9nh : <img loading=\"lazy\" decoding=\"async\" width=\"325\" height=\"34\" class=\"wp-image-20069\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_285-9.png\" alt=\"IMG_285\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_285-9.png 325w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_285-9-300x31.png 300w\" sizes=\"(max-width: 325px) 100vw, 325px\" \/><\/p>\n<p>+ Tr\u1ee5c l\u1edbn : <img loading=\"lazy\" decoding=\"async\" width=\"88\" height=\"31\" class=\"wp-image-20070\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_286-8.png\" alt=\"IMG_286\"> tr\u1ee5c nh\u1ecf : <img loading=\"lazy\" decoding=\"async\" width=\"87\" height=\"31\" class=\"wp-image-20071\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_287-9.png\" alt=\"IMG_287\"><\/p>\n<p><strong>Vi\u0301 du\u0323: <\/strong>Cho elip c\u00f3 ph\u01b0\u01a1ng tr\u00ecnh: <img loading=\"lazy\" decoding=\"async\" width=\"115\" height=\"56\" class=\"wp-image-20072\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_288-9.png\" alt=\"IMG_288\"> Khi \u0111\u00f3 \u0111\u1ed9 d\u00e0i tr\u1ee5c l\u1edbn, tr\u1ee5c nh\u1ecf l\u1ea7n l\u01b0\u1ee3t l\u00e0.<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"37\" height=\"28\" class=\"wp-image-20073\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_289-10.png\" alt=\"IMG_289\"> <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"37\" height=\"28\" class=\"wp-image-20074\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_290-9.png\" alt=\"IMG_290\"> <strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"37\" height=\"28\" class=\"wp-image-20075\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_291-9.png\" alt=\"IMG_291\"> <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"37\" height=\"28\" class=\"wp-image-20076\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_292-9.png\" alt=\"IMG_292\"><\/p>\n<p><strong>L\u01a1\u0300i gia\u0309i<\/strong><\/p>\n<p>Ta c\u00f3: <img loading=\"lazy\" decoding=\"async\" width=\"146\" height=\"67\" class=\"wp-image-20077\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_293-9.png\" alt=\"IMG_293\"><\/p>\n<p>&#8211; Tr\u1ee5c l\u1edbn: <img loading=\"lazy\" decoding=\"async\" width=\"159\" height=\"31\" class=\"wp-image-20078\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_294-9.png\" alt=\"IMG_294\"><\/p>\n<p>&#8211; Tr\u1ee5c nh\u1ecf: <img loading=\"lazy\" decoding=\"async\" width=\"159\" height=\"31\" class=\"wp-image-20079\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_295-9.png\" alt=\"IMG_295\"><\/p>\n<p><strong>Cho\u0323n B <\/strong><\/p>\n<p><strong>b) Ph\u01b0\u01a1ng pha\u0301p gia\u0309i tr\u1eafc nghi\u1ec7m, casio<\/strong>.<\/p>\n<p><\/p>\n<p><strong>2. Da\u0323ng 2: <\/strong>X\u00e1c \u0111\u1ecbnh t\u1ecda \u0111\u1ed9 c\u00e1c ti\u00eau \u0111i\u1ec3m khi cho s\u1eb5n ph\u01b0\u01a1ng tr\u00ecnh elip.<\/p>\n<p><strong>a) Ph\u01b0\u01a1ng pha\u0301p gia\u0309i t\u01b0\u0323 lu\u00e2\u0323n<\/strong>.<\/p>\n<p>T\u1eeb ph\u01b0\u01a1ng tr\u00ecnh ch\u00ednh t\u1eafc c\u1ee7a <img loading=\"lazy\" decoding=\"async\" width=\"164\" height=\"56\" class=\"wp-image-20080\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_296-9.png\" alt=\"IMG_296\"> ta c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c:<\/p>\n<p>+ C\u00e1c \u0111\u1ec9nh : <img loading=\"lazy\" decoding=\"async\" width=\"325\" height=\"34\" class=\"wp-image-20081\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_297-9.png\" alt=\"IMG_297\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_297-9.png 325w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_297-9-300x31.png 300w\" sizes=\"(max-width: 325px) 100vw, 325px\" \/><\/p>\n<p>+ Ti\u00eau \u0111i\u1ec3m: Ti\u00eau \u0111i\u1ec3m tr\u00e1i <img loading=\"lazy\" decoding=\"async\" width=\"85\" height=\"34\" class=\"wp-image-20082\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_298-9.png\" alt=\"IMG_298\"> ti\u00eau \u0111i\u1ec3m ph\u1ea3i <img loading=\"lazy\" decoding=\"async\" width=\"70\" height=\"34\" class=\"wp-image-20083\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_299-9.png\" alt=\"IMG_299\"> v\u1edbi <img loading=\"lazy\" decoding=\"async\" width=\"98\" height=\"28\" class=\"wp-image-20084\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_300-9.png\" alt=\"IMG_300\"><\/p>\n<p><strong>Vi\u0301 du\u0323: <\/strong>Cho elip c\u00f3 ph\u01b0\u01a1ng tr\u00ecnh: <img loading=\"lazy\" decoding=\"async\" width=\"115\" height=\"56\" class=\"wp-image-20085\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_301-9.png\" alt=\"IMG_301\"> Khi \u0111\u00f3 t\u1ecda \u0111\u1ed9 ti\u00eau \u0111i\u1ec3m c\u1ee7a elip l\u00e0.<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"187\" height=\"40\" class=\"wp-image-20086\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_302-9.png\" alt=\"IMG_302\"> <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"174\" height=\"34\" class=\"wp-image-20087\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_303-9.png\" alt=\"IMG_303\"><\/p>\n<p><strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"156\" height=\"34\" class=\"wp-image-20088\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_304-9.png\" alt=\"IMG_304\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_304-9.png 156w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_304-9-150x34.png 150w\" sizes=\"(max-width: 156px) 100vw, 156px\" \/> <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"157\" height=\"34\" class=\"wp-image-20089\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_305-9.png\" alt=\"IMG_305\"><\/p>\n<p><strong>L\u01a1\u0300i gia\u0309i<\/strong><\/p>\n<p>Ta c\u00f3: <img loading=\"lazy\" decoding=\"async\" width=\"327\" height=\"67\" class=\"wp-image-20090\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_306-9.png\" alt=\"IMG_306\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_306-9.png 327w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_306-9-300x61.png 300w\" sizes=\"(max-width: 327px) 100vw, 327px\" \/><\/p>\n<p>&#8211; Ti\u00eau \u0111i\u1ec3m l\u00e0: <img loading=\"lazy\" decoding=\"async\" width=\"187\" height=\"40\" class=\"wp-image-20091\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_307-9.png\" alt=\"IMG_307\"><\/p>\n<p><strong>Cho\u0323n A <\/strong><\/p>\n<p><strong>b) Ph\u01b0\u01a1ng pha\u0301p gia\u0309i tr\u1eafc nghi\u1ec7m, casio<\/strong>.<\/p>\n<p><\/p>\n<p><strong>3. Da\u0323ng 3: <\/strong>X\u00e1c \u0111\u1ecbnh t\u1ecda \u0111\u1ed9 c\u00e1c ti\u00eau \u0111i\u1ec3m khi cho s\u1eb5n ph\u01b0\u01a1ng tr\u00ecnh elip.<\/p>\n<p><strong>a) Ph\u01b0\u01a1ng pha\u0301p gia\u0309i t\u01b0\u0323 lu\u00e2\u0323n<\/strong>.<\/p>\n<p>T\u1eeb ph\u01b0\u01a1ng tr\u00ecnh ch\u00ednh t\u1eafc c\u1ee7a <img loading=\"lazy\" decoding=\"async\" width=\"164\" height=\"56\" class=\"wp-image-20092\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_308-9.png\" alt=\"IMG_308\"> ta c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c:<\/p>\n<p>+ C\u00e1c \u0111\u1ec9nh : <img loading=\"lazy\" decoding=\"async\" width=\"325\" height=\"34\" class=\"wp-image-20093\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_309-9.png\" alt=\"IMG_309\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_309-9.png 325w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_309-9-300x31.png 300w\" sizes=\"(max-width: 325px) 100vw, 325px\" \/><\/p>\n<p><strong>Vi\u0301 du\u0323 1: <\/strong>Cho elip c\u00f3 ph\u01b0\u01a1ng tr\u00ecnh: <img loading=\"lazy\" decoding=\"async\" width=\"115\" height=\"56\" class=\"wp-image-20094\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_310-9.png\" alt=\"IMG_310\"> Khi \u0111\u00f3 t\u1ecda \u0111\u1ed9 hai \u0111\u1ec9nh tr\u00ean tr\u1ee5c l\u1edbn c\u1ee7a elip l\u00e0.<\/p>\n<p><strong>A.<\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"154\" height=\"34\" class=\"wp-image-20095\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_311-9.png\" alt=\"IMG_311\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_311-9.png 154w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_311-9-150x34.png 150w\" sizes=\"(max-width: 154px) 100vw, 154px\" \/> <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"154\" height=\"34\" class=\"wp-image-20096\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_312-9.png\" alt=\"IMG_312\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_312-9.png 154w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_312-9-150x34.png 150w\" sizes=\"(max-width: 154px) 100vw, 154px\" \/><\/p>\n<p><strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"158\" height=\"34\" class=\"wp-image-20097\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_313-9.png\" alt=\"IMG_313\"> <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"158\" height=\"34\" class=\"wp-image-20098\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_314-9.png\" alt=\"IMG_314\"><\/p>\n<p><strong>L\u01a1\u0300i gia\u0309i<\/strong><\/p>\n<p>Ta c\u00f3: <img loading=\"lazy\" decoding=\"async\" width=\"128\" height=\"28\" class=\"wp-image-20099\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_315-9.png\" alt=\"IMG_315\"><\/p>\n<p>&#8211; Hai \u0111\u1ec9nh tr\u00ean tr\u1ee5c l\u1edbn l\u00e0: <img loading=\"lazy\" decoding=\"async\" width=\"158\" height=\"34\" class=\"wp-image-20100\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_316-9.png\" alt=\"IMG_316\"><\/p>\n<p><strong>Cho\u0323n D <\/strong><\/p>\n<p><strong>Vi\u0301 du\u0323 2: <\/strong>Cho elip c\u00f3 ph\u01b0\u01a1ng tr\u00ecnh: <img loading=\"lazy\" decoding=\"async\" width=\"115\" height=\"56\" class=\"wp-image-20101\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_317-9.png\" alt=\"IMG_317\"> Khi \u0111\u00f3 t\u1ecda \u0111\u1ed9 hai \u0111\u1ec9nh tr\u00ean tr\u1ee5c nh\u1ecf c\u1ee7a elip l\u00e0.<\/p>\n<p><strong>A.<\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"158\" height=\"34\" class=\"wp-image-20102\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_318-9.png\" alt=\"IMG_318\"> <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"146\" height=\"34\" class=\"wp-image-20103\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_319-9.png\" alt=\"IMG_319\"><\/p>\n<p><strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"170\" height=\"34\" class=\"wp-image-20104\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_320-9.png\" alt=\"IMG_320\"> <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"157\" height=\"34\" class=\"wp-image-20105\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_321-9.png\" alt=\"IMG_321\"><\/p>\n<p><strong>L\u01a1\u0300i gia\u0309i<\/strong><\/p>\n<p>Ta c\u00f3: <img loading=\"lazy\" decoding=\"async\" width=\"126\" height=\"28\" class=\"wp-image-20106\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_322-9.png\" alt=\"IMG_322\"><\/p>\n<p>&#8211; Hai \u0111\u1ec9nh tr\u00ean tr\u1ee5c l\u1edbn l\u00e0: <img loading=\"lazy\" decoding=\"async\" width=\"158\" height=\"34\" class=\"wp-image-20107\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_323-9.png\" alt=\"IMG_323\"><\/p>\n<p><strong>Cho\u0323n A <\/strong><\/p>\n<p><strong>b) Ph\u01b0\u01a1ng pha\u0301p gia\u0309i tr\u1eafc nghi\u1ec7m, casio<\/strong>.<\/p>\n<p><\/p>\n<p><strong>4. Da\u0323ng 4: <\/strong>L\u1eadp ph\u01b0\u01a1ng tr\u00ecnh ch\u00ednh t\u1eafc c\u1ee7a elip khi bi\u1ebft \u0111\u1ed9 d\u00e0i tr\u1ee5c l\u1edbn v\u00e0 tr\u1ee5c nh\u1ecf.<\/p>\n<p><strong>a) Ph\u01b0\u01a1ng pha\u0301p gia\u0309i t\u01b0\u0323 lu\u00e2\u0323n<\/strong>.<\/p>\n<p>+ Tr\u1ee5c l\u1edbn : <img loading=\"lazy\" decoding=\"async\" width=\"88\" height=\"31\" class=\"wp-image-20108\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_324-9.png\" alt=\"IMG_324\"> tr\u1ee5c nh\u1ecf : <img loading=\"lazy\" decoding=\"async\" width=\"87\" height=\"31\" class=\"wp-image-20109\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_325-9.png\" alt=\"IMG_325\"> Ta x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c <img loading=\"lazy\" decoding=\"async\" width=\"40\" height=\"28\" class=\"wp-image-20110\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_326-9.png\" alt=\"IMG_326\"><\/p>\n<p>+ Vi\u1ebft ph\u01b0\u01a1ng tr\u00ecnh elip: <img loading=\"lazy\" decoding=\"async\" width=\"103\" height=\"56\" class=\"wp-image-20111\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_327-9.png\" alt=\"IMG_327\"><\/p>","protected":false},"excerpt":{"rendered":"<p>I \u2013 LY\u0301 THUY\u00ca\u0301T 1)\u0110\u1ecbnh ngh\u0129a: Cho hai \u0111i\u1ec3m c\u1ed1 \u0111\u1ecbnh v\u1edbi v\u00e0 h\u1eb1ng s\u1ed1 Elip l\u00e0 t\u1eadp h\u1ee3p c\u00e1c \u0111i\u1ec3m th\u1ecfa m\u00e3n . C\u00e1c \u0111i\u1ec3m l\u00e0 ti\u00eau \u0111i\u1ec3m c\u1ee7a Kho\u1ea3ng c\u00e1ch l\u00e0 ti\u00eau c\u1ef1 c\u1ee7a \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u00e1n k\u00ednh qua ti\u00eau. 2) Ph\u01b0\u01a1ng tr\u00ecnh ch\u00ednh t\u1eafc c\u1ee7a elip: V\u1edbi : trong \u0111\u00f3 (1) [&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":[41],"tags":[],"class_list":["post-20039","post","type-post","status-publish","format-standard","hentry","category-toan-lop-10"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/20039","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=20039"}],"version-history":[{"count":2,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/20039\/revisions"}],"predecessor-version":[{"id":20180,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/20039\/revisions\/20180"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=20039"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=20039"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=20039"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}