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{"id":27492,"date":"2018-04-18T16:16:42","date_gmt":"2018-04-18T09:16:42","guid":{"rendered":"https:\/\/lop12.edu.vn\/?p=27492"},"modified":"2018-04-18T16:16:42","modified_gmt":"2018-04-18T09:16:42","slug":"chuong-2-bai-tap-trac-nghiem-giai-tich-12-ham-so-mu-va-ham-so-logarit-phan-1","status":"publish","type":"post","link":"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-ham-so-mu-va-ham-so-logarit-phan-1\/","title":{"rendered":"Ch\u01b0\u01a1ng 2 – B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: H\u00e0m s\u1ed1 m\u0169 v\u00e0 h\u00e0m s\u1ed1 l\u00f4garit – Ph\u1ea7n 1"},"content":{"rendered":"

C\u00e2u 1:<\/b>\u00a0Vi\u1ebft c\u00e1c s\u1ed1<\/p>\n

\"\"<\/p>\n

theo th\u1ee9 t\u1ef1 t\u0103ng d\u1ea7n<\/p>\n

\"\"<\/p>\n

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

C\u00e2u 2:<\/b>\u00a0T\u00ecm \u0111\u1ea1o h\u00e0m c\u1ee7a h\u00e0m s\u1ed1 y = log5<\/sub>(xex<\/sup>)<\/p>\n

\"\"<\/p>\n

C\u00e2u 3:<\/b>\u00a0T\u00ecm c\u00e1c kho\u1ea3ng \u0111\u1ed3ng bi\u1ebfn c\u1ee7a h\u00e0m s\u1ed1 y = x2<\/sup>e-4x<\/sup><\/p>\n

\"\"<\/p>\n

C\u00e2u 4:<\/b>\u00a0T\u00ecm c\u00e1c kho\u1ea3ng ngh\u1ecbch bi\u1ebfn c\u1ee7a h\u00e0m s\u1ed1 y = 3ln(x +1) + x – x2<\/sup>\/2<\/p>\n

A.(-1; 2)\u00a0\u00a0\u00a0C. (-2 ;-1) v\u00e0 (2; +\u221e)<\/p>\n

B. (2; +\u221e)\u00a0\u00a0\u00a0D. (-\u221e; -2) v\u00e0 (-1 ;2)<\/p>\n

C\u00e2u 5:<\/b>\u00a0Cho hai s\u1ed1 th\u1ef1c a v\u00e0 b , v\u1edbi 0 < a < b < 1. Kh\u1eb3ng \u0111\u1ecbnh n\u00e0o sau \u0111\u00e2y l\u00e0 \u0111\u00fang ?<\/p>\n

A. logb<\/sub>a < 1 < loga<\/sub>b\u00a0\u00a0\u00a0C. loga<\/sub>b < 1 < logb<\/sub>a<\/p>\n

B. logb<\/sub>a < loga<\/sub>b < 1 \u00a0\u00a0\u00a0D. 1 < loga<\/sub>b < logb<\/sub>a<\/p>\n

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

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

Ta c\u00f3 -1 < 0 < \u221a2 < \u03c0 v\u00e0 0 < 1\/3 < 1 n\u00ean<\/p>\n

\"\"<\/p>\n

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

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

\u0110\u1ec3 thu\u1eadn ti\u1ec7n, ta vi\u1ebft l\u1ea1i<\/p>\n

\"\"<\/p>\n

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

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

T\u1eadp x\u00e1c \u0111\u1ecbnh R.<\/p>\n

Ta c\u00f3:<\/p>\n

y’ = 2xe-4x<\/sup>\u00a0+ x2<\/sup>e-4x<\/sup>(-4) = 2e-4x<\/sup>x(1 – 2x)<\/p>\n

B\u1ea3ng bi\u1ebfn thi\u00ean<\/p>\n

\"\"<\/p>\n

Kho\u1ea3ng \u0111\u1ed3ng bi\u1ebfn c\u1ee7a h\u00e0m s\u1ed1 l\u00e0 (0; 1\/2) .<\/p>\n

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

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

T\u1eadp x\u00e1c \u0111\u1ecbnh : (-1; +\u221e)<\/p>\n

\"\"<\/p>\n

B\u1ea3ng bi\u1ebfn thi\u00ean :<\/p>\n

\"\"<\/p>\n

T\u1eeb \u0111\u00f3, kho\u1ea3ng ngh\u1ecbch bi\u1ebfn c\u1ee7a h\u00e0m s\u1ed1 l\u00e0(2; +\u221e) .<\/p>\n

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

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

\u0110\u1eb7t c = b – a ta c\u00f3 c > 0. Do c\u00e1c h\u00e0m s\u1ed1 y = loga<\/sub>x v\u00e0 logb<\/sub>x ngh\u1ecbch bi\u1ebfn tr\u00ean (0; +\u221e) n\u00ean ta c\u00f3 loga<\/sub>b = loga<\/sub>(a + c) < loga<\/sub>a = 1 v\u00e0 logb<\/sub>a = logb<\/sub>(b – c) > logb<\/sub>b = 1.<\/p>\n

V\u1eady loga<\/sub>b < a < logb<\/sub>a<\/p>\n

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

C\u00e2u 1:\u00a0Vi\u1ebft c\u00e1c s\u1ed1 theo th\u1ee9 t\u1ef1 t\u0103ng d\u1ea7n C\u00e2u 2:\u00a0T\u00ecm \u0111\u1ea1o h\u00e0m c\u1ee7a h\u00e0m s\u1ed1 y = log5(xex) C\u00e2u 3:\u00a0T\u00ecm c\u00e1c kho\u1ea3ng \u0111\u1ed3ng bi\u1ebfn c\u1ee7a h\u00e0m s\u1ed1 y = x2e-4x C\u00e2u 4:\u00a0T\u00ecm c\u00e1c kho\u1ea3ng ngh\u1ecbch bi\u1ebfn c\u1ee7a h\u00e0m s\u1ed1 y = 3ln(x +1) + x – x2\/2 A.(-1; 2)\u00a0\u00a0\u00a0C. (-2 ;-1) v\u00e0 (2; +\u221e) […]<\/p>\n","protected":false},"author":3,"featured_media":27493,"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: H\u00e0m s\u1ed1 m\u0169 v\u00e0 h\u00e0m s\u1ed1 l\u00f4garit - 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-ham-so-mu-va-ham-so-logarit-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: H\u00e0m s\u1ed1 m\u0169 v\u00e0 h\u00e0m s\u1ed1 l\u00f4garit - Ph\u1ea7n 1\" \/>\n<meta property=\"og:description\" content=\"C\u00e2u 1:\u00a0Vi\u1ebft c\u00e1c s\u1ed1 theo th\u1ee9 t\u1ef1 t\u0103ng d\u1ea7n C\u00e2u 2:\u00a0T\u00ecm \u0111\u1ea1o h\u00e0m c\u1ee7a h\u00e0m s\u1ed1 y = log5(xex) C\u00e2u 3:\u00a0T\u00ecm c\u00e1c kho\u1ea3ng \u0111\u1ed3ng bi\u1ebfn c\u1ee7a h\u00e0m s\u1ed1 y = x2e-4x C\u00e2u 4:\u00a0T\u00ecm c\u00e1c kho\u1ea3ng ngh\u1ecbch bi\u1ebfn c\u1ee7a h\u00e0m s\u1ed1 y = 3ln(x +1) + x – x2\/2 A.(-1; 2)\u00a0\u00a0\u00a0C. (-2 ;-1) v\u00e0 (2; +\u221e) […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-ham-so-mu-va-ham-so-logarit-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=\"2018-04-18T09:16:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/04\/1-239.png\" \/>\n\t<meta property=\"og:image:width\" content=\"199\" \/>\n\t<meta property=\"og:image:height\" content=\"68\" \/>\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=\"2 minutes\" \/>\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-ham-so-mu-va-ham-so-logarit-phan-1\/\",\"url\":\"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-ham-so-mu-va-ham-so-logarit-phan-1\/\",\"name\":\"Ch\u01b0\u01a1ng 2 - B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: H\u00e0m s\u1ed1 m\u0169 v\u00e0 h\u00e0m s\u1ed1 l\u00f4garit - Ph\u1ea7n 1\",\"isPartOf\":{\"@id\":\"https:\/\/lop12.edu.vn\/#website\"},\"datePublished\":\"2018-04-18T09:16:42+00:00\",\"dateModified\":\"2018-04-18T09:16:42+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-ham-so-mu-va-ham-so-logarit-phan-1\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-ham-so-mu-va-ham-so-logarit-phan-1\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-ham-so-mu-va-ham-so-logarit-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: H\u00e0m s\u1ed1 m\u0169 v\u00e0 h\u00e0m s\u1ed1 l\u00f4garit – 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: H\u00e0m s\u1ed1 m\u0169 v\u00e0 h\u00e0m s\u1ed1 l\u00f4garit - 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-ham-so-mu-va-ham-so-logarit-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: H\u00e0m s\u1ed1 m\u0169 v\u00e0 h\u00e0m s\u1ed1 l\u00f4garit - Ph\u1ea7n 1","og_description":"C\u00e2u 1:\u00a0Vi\u1ebft c\u00e1c s\u1ed1 theo th\u1ee9 t\u1ef1 t\u0103ng d\u1ea7n C\u00e2u 2:\u00a0T\u00ecm \u0111\u1ea1o h\u00e0m c\u1ee7a h\u00e0m s\u1ed1 y = log5(xex) C\u00e2u 3:\u00a0T\u00ecm c\u00e1c kho\u1ea3ng \u0111\u1ed3ng bi\u1ebfn c\u1ee7a h\u00e0m s\u1ed1 y = x2e-4x C\u00e2u 4:\u00a0T\u00ecm c\u00e1c kho\u1ea3ng ngh\u1ecbch bi\u1ebfn c\u1ee7a h\u00e0m s\u1ed1 y = 3ln(x +1) + x – x2\/2 A.(-1; 2)\u00a0\u00a0\u00a0C. (-2 ;-1) v\u00e0 (2; +\u221e) […]","og_url":"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-ham-so-mu-va-ham-so-logarit-phan-1\/","og_site_name":"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12 l\u1edbn nh\u1ea5t t\u1ea1i Vi\u1ec7t Nam","article_published_time":"2018-04-18T09:16:42+00:00","og_image":[{"width":199,"height":68,"url":"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/04\/1-239.png","type":"image\/png"}],"author":"H\u00e0 Trang","twitter_card":"summary_large_image","twitter_misc":{"Written by":"H\u00e0 Trang","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-ham-so-mu-va-ham-so-logarit-phan-1\/","url":"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-ham-so-mu-va-ham-so-logarit-phan-1\/","name":"Ch\u01b0\u01a1ng 2 - B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: H\u00e0m s\u1ed1 m\u0169 v\u00e0 h\u00e0m s\u1ed1 l\u00f4garit - Ph\u1ea7n 1","isPartOf":{"@id":"https:\/\/lop12.edu.vn\/#website"},"datePublished":"2018-04-18T09:16:42+00:00","dateModified":"2018-04-18T09:16:42+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-ham-so-mu-va-ham-so-logarit-phan-1\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-ham-so-mu-va-ham-so-logarit-phan-1\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/lop12.edu.vn\/chuong-2-bai-tap-trac-nghiem-giai-tich-12-ham-so-mu-va-ham-so-logarit-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: H\u00e0m s\u1ed1 m\u0169 v\u00e0 h\u00e0m s\u1ed1 l\u00f4garit – 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\/"}]}},"_links":{"self":[{"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/posts\/27492"}],"collection":[{"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/comments?post=27492"}],"version-history":[{"count":1,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/posts\/27492\/revisions"}],"predecessor-version":[{"id":27502,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/posts\/27492\/revisions\/27502"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/media\/27493"}],"wp:attachment":[{"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/media?parent=27492"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/categories?post=27492"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/tags?post=27492"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}