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{"id":27652,"date":"2018-04-18T17:23:09","date_gmt":"2018-04-18T10:23:09","guid":{"rendered":"https:\/\/lop12.edu.vn\/?p=27652"},"modified":"2018-04-18T17:23:09","modified_gmt":"2018-04-18T10:23:09","slug":"chuong-2-bai-tap-trac-nghiem-giai-tich-12-luy-thua-phan-1","status":"publish","type":"post","link":"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-luy-thua-phan-1\/","title":{"rendered":"Ch\u01b0\u01a1ng 2 – B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: L\u0169y th\u1eeba (Ph\u1ea7n 1)"},"content":{"rendered":"

C\u00e2u 1:<\/b>\u00a0T\u00ednh gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c<\/p>\n

\"\"<\/p>\n

C\u00e2u 2:<\/b>\u00a0R\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c<\/p>\n

\"\"<\/p>\n

vi\u1ebft k\u1ebft qu\u1ea3 sao cho c\u00e1c l\u0169y th\u1eeba \u0111\u1ec1u d\u01b0\u01a1ng<\/p>\n

\"\"<\/p>\n

C\u00e2u 3:<\/b>\u00a0N\u1ebfu x > y > 0 th\u00ec<\/p>\n

\"\"<\/p>\n

C\u00e2u 4:<\/b>\u00a0N\u1ebfu x \u2265 0 th\u00ec<\/p>\n

\"\"<\/p>\n

b\u1eb1ng<\/p>\n

\"\"<\/p>\n

C\u00e2u 5:<\/b>\u00a0Bi\u1ec3u th\u1ee9c<\/p>\n

\"\"<\/p>\n

b\u1eb1ng bi\u1ec3u th\u1ee9c n\u00e0o d\u01b0\u1edbi \u0111\u00e2y?<\/p>\n

A. a-2<\/sup>\u00a0+ b-2<\/sup> \u00a0\u00a0\u00a0B. a-2<\/sup>\u00a0– b-2<\/sup>\u00a0\u00a0\u00a0\u00a0C. a2<\/sup>\u00a0+ b2<\/sup> \u00a0\u00a0\u00a0D. a-6<\/sup>\u00a0– b-6<\/sup><\/p>\n

C\u00e2u 6:<\/b>\u00a0Cho a v\u00e0 b l\u00e0 2 s\u1ed1 d\u01b0\u01a1ng th\u1ecfa m\u00e3n \u0111\u1ed3ng th\u1eddi ab<\/sup>\u00a0= ba<\/sup>\u00a0v\u00e0 b=9a. T\u00ecm a.<\/p>\n

\"\"<\/p>\n

C\u00e2u 7:<\/b>\u00a0Bi\u1ebft (a + a-1<\/sup>)2<\/sup>\u00a0= 3. T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a a3<\/sup>\u00a0+ a-3<\/sup>\u00a0.<\/p>\n

A.0\u00a0\u00a0\u00a0B. 1 \u00a0\u00a0\u00a0C. 2\u00a0\u00a0\u00a0D. 3.<\/p>\n

C\u00e2u 8:<\/b>\u00a0Bi\u1ebft r\u1eb1ng x = 1 + 2t<\/sup>\u00a0v\u00e0 y = 1 + 2-t<\/sup>\u00a0. H\u00e3y bi\u1ec3u di\u1ec5n y theo x.<\/p>\n

\"\"<\/p>\n

H\u01b0\u1edbng d\u1eabn gi\u1ea3i v\u00e0 \u0110\u00e1p \u00e1n<\/b><\/p>\n\n\n\n
1-D<\/td>\n2-B<\/td>\n3-C<\/td>\n4-B<\/td>\n5-B<\/td>\n6-B<\/td>\n7-A<\/td>\n8-D<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u00e2u 1:<\/b><\/p>\n

\"\"<\/p>\n

Ch\u1ecdn \u0111\u00e1p \u00e1n D<\/p>\n

C\u00e2u 2:<\/b><\/p>\n

\"\"<\/p>\n

\"B\u00e0i<\/p>\n

Ch\u1ecdn \u0111\u00e1p \u00e1n B.<\/p>\n

C\u00e2u 3:<\/b><\/p>\n

\"\"<\/p>\n

Ch\u1ecdn \u0111\u00e1p \u00e1n C .<\/p>\n

C\u00e2u 4:<\/b><\/p>\n

\"\"<\/p>\n

C\u00e1ch kh\u00e1c:<\/p>\n

\"\"<\/p>\n

\u0110\u00e1p \u00e1n B<\/p>\n

C\u00e2u 5:<\/b><\/p>\n

S\u1eed d\u1ee5ng h\u1eb1ng \u0111\u1eb3ng th\u1ee9c \u03b12<\/sup>\u00a0– \u03b22<\/sup>\u00a0= (\u03b1 + \u03b2)(\u03b1 – \u03b2), ta c\u00f3<\/p>\n

\"\"<\/p>\n

Ch\u1ecdn \u0111\u00e1p \u00e1n B.<\/p>\n

C\u00e2u 6:<\/b><\/p>\n

Th\u1ebf b=9a v\u00e0o \u0111\u1eb3ng th\u1ee9c c\u00f2n l\u1ea1i ta \u0111\u01b0\u1ee3c<\/p>\n

a9a<\/sup>\u00a0= (9a)a<\/sup>\u00a0=> (a9<\/sup>)a<\/sup>\u00a0=> a9<\/sup>\u00a0= 9a => a8<\/sup>\u00a0= 9 ( do a > 0)<\/p>\n

\"\"<\/p>\n

Ch\u1ecdn \u0111\u00e1p \u00e1n B<\/p>\n

C\u00e2u 7:<\/b><\/p>\n

S\u1eed d\u1ee5ng h\u1eb1ng \u0111\u1eb3ng th\u1ee9c ta c\u00f3<\/p>\n

\"\"<\/p>\n

M\u1eb7t kh\u00e1c<\/p>\n

\"\"<\/p>\n

=> a3<\/sup>\u00a0+ a-3<\/sup>\u00a0.Ch\u1ecdn \u0111\u00e1p \u00e1n A.<\/p>\n

C\u00e2u 8:<\/b><\/p>\n

T\u1eeb gi\u1ea3 thi\u1ebft ta c\u00f3<\/p>\n

\"\"<\/p>\n

Ch\u1ecdn \u0111\u00e1p \u00e1n D.<\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e2u 1:\u00a0T\u00ednh gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c C\u00e2u 2:\u00a0R\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c vi\u1ebft k\u1ebft qu\u1ea3 sao cho c\u00e1c l\u0169y th\u1eeba \u0111\u1ec1u d\u01b0\u01a1ng C\u00e2u 3:\u00a0N\u1ebfu x > y > 0 th\u00ec C\u00e2u 4:\u00a0N\u1ebfu x \u2265 0 th\u00ec b\u1eb1ng C\u00e2u 5:\u00a0Bi\u1ec3u th\u1ee9c b\u1eb1ng bi\u1ec3u th\u1ee9c n\u00e0o d\u01b0\u1edbi \u0111\u00e2y? A. a-2\u00a0+ b-2 \u00a0\u00a0\u00a0B. a-2\u00a0– b-2\u00a0\u00a0\u00a0\u00a0C. a2\u00a0+ b2 \u00a0\u00a0\u00a0D. a-6\u00a0– […]<\/p>\n","protected":false},"author":3,"featured_media":27653,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[157],"tags":[1447,1446],"yoast_head":"\nCh\u01b0\u01a1ng 2 - B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: L\u0169y th\u1eeba (Ph\u1ea7n 1)<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-luy-thua-phan-1\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ch\u01b0\u01a1ng 2 - B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: L\u0169y th\u1eeba (Ph\u1ea7n 1)\" \/>\n<meta property=\"og:description\" content=\"C\u00e2u 1:\u00a0T\u00ednh gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c C\u00e2u 2:\u00a0R\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c vi\u1ebft k\u1ebft qu\u1ea3 sao cho c\u00e1c l\u0169y th\u1eeba \u0111\u1ec1u d\u01b0\u01a1ng C\u00e2u 3:\u00a0N\u1ebfu x > y > 0 th\u00ec C\u00e2u 4:\u00a0N\u1ebfu x \u2265 0 th\u00ec b\u1eb1ng C\u00e2u 5:\u00a0Bi\u1ec3u th\u1ee9c b\u1eb1ng bi\u1ec3u th\u1ee9c n\u00e0o d\u01b0\u1edbi \u0111\u00e2y? A. a-2\u00a0+ b-2 \u00a0\u00a0\u00a0B. a-2\u00a0– b-2\u00a0\u00a0\u00a0\u00a0C. a2\u00a0+ b2 \u00a0\u00a0\u00a0D. a-6\u00a0– […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-luy-thua-phan-1\/\" \/>\n<meta property=\"og:site_name\" content=\"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12 l\u1edbn nh\u1ea5t t\u1ea1i Vi\u1ec7t Nam\" \/>\n<meta property=\"article:published_time\" content=\"2018-04-18T10:23:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/04\/1-255.png\" \/>\n\t<meta property=\"og:image:width\" content=\"303\" \/>\n\t<meta property=\"og:image:height\" content=\"214\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"H\u00e0 Trang\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"H\u00e0 Trang\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-luy-thua-phan-1\/\",\"url\":\"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-luy-thua-phan-1\/\",\"name\":\"Ch\u01b0\u01a1ng 2 - B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: L\u0169y th\u1eeba (Ph\u1ea7n 1)\",\"isPartOf\":{\"@id\":\"https:\/\/lop12.edu.vn\/#website\"},\"datePublished\":\"2018-04-18T10:23:09+00:00\",\"dateModified\":\"2018-04-18T10:23:09+00:00\",\"author\":{\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/2da855e5d06b553ac0065157cc261a45\"},\"breadcrumb\":{\"@id\":\"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-luy-thua-phan-1\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-luy-thua-phan-1\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-luy-thua-phan-1\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/lop12.edu.vn\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Ch\u01b0\u01a1ng 2 – B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: L\u0169y th\u1eeba (Ph\u1ea7n 1)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/lop12.edu.vn\/#website\",\"url\":\"https:\/\/lop12.edu.vn\/\",\"name\":\"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/lop12.edu.vn\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/2da855e5d06b553ac0065157cc261a45\",\"name\":\"H\u00e0 Trang\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/545a8100db1147f314111301d261dc33?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/545a8100db1147f314111301d261dc33?s=96&d=mm&r=g\",\"caption\":\"H\u00e0 Trang\"},\"url\":\"https:\/\/lop12.edu.vn\/author\/trangvth2\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Ch\u01b0\u01a1ng 2 - B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: L\u0169y th\u1eeba (Ph\u1ea7n 1)","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-luy-thua-phan-1\/","og_locale":"en_US","og_type":"article","og_title":"Ch\u01b0\u01a1ng 2 - B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: L\u0169y th\u1eeba (Ph\u1ea7n 1)","og_description":"C\u00e2u 1:\u00a0T\u00ednh gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c C\u00e2u 2:\u00a0R\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c vi\u1ebft k\u1ebft qu\u1ea3 sao cho c\u00e1c l\u0169y th\u1eeba \u0111\u1ec1u d\u01b0\u01a1ng C\u00e2u 3:\u00a0N\u1ebfu x > y > 0 th\u00ec C\u00e2u 4:\u00a0N\u1ebfu x \u2265 0 th\u00ec b\u1eb1ng C\u00e2u 5:\u00a0Bi\u1ec3u th\u1ee9c b\u1eb1ng bi\u1ec3u th\u1ee9c n\u00e0o d\u01b0\u1edbi \u0111\u00e2y? 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