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{"id":27200,"date":"2018-04-17T11:24:38","date_gmt":"2018-04-17T04:24:38","guid":{"rendered":"https:\/\/lop12.edu.vn\/?p=27200"},"modified":"2018-04-17T11:24:38","modified_gmt":"2018-04-17T04:24:38","slug":"chuong-2-de-kiem-tra-giai-tich-12-chuong-2-phan-2","status":"publish","type":"post","link":"https:\/\/lop12.edu.vn\/chuong-2-de-kiem-tra-giai-tich-12-chuong-2-phan-2\/","title":{"rendered":"Ch\u01b0\u01a1ng 2 – \u0110\u1ec1 ki\u1ec3m tra Gi\u1ea3i t\u00edch 12 ch\u01b0\u01a1ng 2 (ph\u1ea7n 2)"},"content":{"rendered":"

C\u00e2u 7:<\/b>\u00a0Gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh log3<\/sub>36 – log3<\/sub>x > 1<\/p>\n

A. 0 < x < 12 \u00a0\u00a0\u00a0B. x < 12\u00a0\u00a0\u00a0C. x > 12 \u00a0\u00a0\u00a0D. x < 1\/12<\/p>\n

C\u00e2u 8:<\/b>\u00a0Cho<\/p>\n

\"\"<\/p>\n

T\u00ecm gi\u00e1 tr\u1ecb c\u1ee7a k<\/p>\n

\"\"<\/p>\n

C\u00e2u 9:<\/b>\u00a0Cho h\u00e0m s\u1ed1<\/p>\n

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

Kh\u1eb3ng \u0111\u1ecbnh n\u00e0o sau \u0111\u00e2y l\u00e0 \u0111\u00fang?<\/p>\n

A. H\u00e0m s\u1ed1 c\u00f3 hai \u0111i\u1ec3m c\u1ef1c tr\u1ecb<\/p>\n

B. H\u00e0m s\u1ed1 kh\u00f4ng c\u00f3 \u0111i\u1ec3m c\u1ef1c tr\u1ecb n\u00e0o<\/p>\n

C. H\u00e0m s\u1ed1 c\u00f3 \u0111\u00fang m\u1ed9t \u0111i\u1ec3m c\u1ef1c tr\u1ecb v\u00e0 n\u00f3 l\u00e0 \u0111i\u1ec3m c\u1ef1c ti\u1ec3u<\/p>\n

D. H\u00e0m s\u1ed1 c\u00f3 \u0111\u00fang m\u1ed9t \u0111i\u1ec3m c\u1ef1c tr\u1ecb v\u00e0 n\u00f3 l\u00e0 \u0111i\u1ec3m c\u1ef1c \u0111\u1ea1i<\/p>\n

C\u00e2u 10:<\/b>\u00a0T\u00ecm gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t c\u1ee7a h\u00e0m s\u1ed1 y = \u221bx(8 – x) tr\u00ean \u0111o\u1ea1n [0; 8]<\/p>\n

A. 4\u221b4\u00a0\u00a0\u00a0B. 5\u221b5 \u00a0\u00a0\u00a0C. 6\u221b2 \u00a0\u00a0\u00a0D. 10\u221b2<\/p>\n

C\u00e2u 11:<\/b>\u00a0N\u1ebfu y = (log2<\/sub>3)(log3<\/sub>4)(log4<\/sub>5)…(log31<\/sub>32) th\u00ec<\/p>\n

A. y = 5 \u00a0\u00a0\u00a0B. 4 < y < 5 \u00a0\u00a0\u00a0C. 5 < y < 6\u00a0\u00a0\u00a0D. y = 6<\/p>\n

C\u00e2u 12:<\/b>\u00a0\u0110\u1eb7t log80 = a, log45 = b . H\u00e3y t\u00ednh log36 theo a v\u00e0 b<\/p>\n

A. a + b – 1\u00a0\u00a0\u00a0B. b – a + 1 \u00a0\u00a0\u00a0C. a + b – 2\u00a0\u00a0\u00a0D. b – a + 2<\/p>\n

H\u01b0\u1edbng d\u1eabn gi\u1ea3i v\u00e0 \u0110\u00e1p \u00e1n<\/b><\/p>\n\n\n\n
7-A<\/td>\n8-D<\/td>\n9-C<\/td>\n10-C<\/td>\n11-A<\/td>\n12-C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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

log3<\/sub>36 – log3<\/sub>x > log3<\/sub>36 – 1 > log3<\/sub>x <=> log3<\/sub>x < log3<\/sub>36 – log3<\/sub>3<\/p>\n

<=> log3<\/sub>x < log3<\/sub>(36\/3) <=> log3<\/sub>x < log3<\/sub>12 <=> 0 < x < 12<\/p>\n

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

\"\"<\/p>\n

C\u00e2u 9:<\/b><\/p>\n

\"\"<\/p>\n

Ta th\u1ea5y y\u2019 \u0111\u1ed5i d\u1ea5u t\u1eeb \u00e2m sang d\u01b0\u01a1ng khi \u0111i qua x = 6\/11 n\u00ean h\u00e0m s\u1ed1 c\u00f3 \u0111\u00fang m\u1ed9t \u0111i\u1ec3m c\u1ef1c tr\u1ecb x = 6\/11 v\u00e0 \u0111\u00f3 l\u00e0 \u0111i\u1ec3m c\u1ef1c ti\u1ec3u<\/p>\n

C\u00e2u 10:<\/b><\/p>\n

\"\"<\/p>\n

Ta c\u00f3: y(0) = y(8) = 0, y(2) = 6\u221b2<\/p>\n

\"\"<\/p>\n

C\u00e2u 11:<\/b><\/p>\n

S\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c loga<\/sub>blogb<\/sub>c = logc<\/sub>a ta t\u00ednh \u0111\u01b0\u1ee3c<\/p>\n

y = [(log2<\/sub>3)(log3<\/sub>4)](log4<\/sub>5)…(log31<\/sub>32) = [log2<\/sub>4](log4<\/sub>5)…(log31<\/sub>32)<\/p>\n

= [(log2<\/sub>4)(log4<\/sub>5)](log5<\/sub>6)…(log31<\/sub>32) = [log2<\/sub>3](log5<\/sub>6)…(log31<\/sub>32)<\/p>\n

= … = log2<\/sub>32 = log2<\/sub>25<\/sup>\u00a0= 5<\/p>\n

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

\"\"<\/p>\n

C\u00e2u 12:<\/b><\/p>\n

Ta c\u00f3: log36 = log(22<\/sup>.32<\/sup>) = 2(log2 + log3)<\/p>\n

log80 = a => 3log2 + 1 = a => log2 = (a-1)\/3<\/p>\n

log45 = b => b = log(32<\/sup>.5) = 2log3 + log5 = 2log3 + log(10\/2) = 2log3 + 1 – log2<\/p>\n

=> 2log3 = b – 1 + log2 = b – 1 + (a – 1)\/3 = b + (a\/3) – (4\/3)<\/p>\n

T\u1eeb \u0111\u00f3:<\/p>\n

\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e2u 7:\u00a0Gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh log336 – log3x > 1 A. 0 < x < 12 \u00a0\u00a0\u00a0B. x < 12\u00a0\u00a0\u00a0C. x > 12 \u00a0\u00a0\u00a0D. x < 1\/12 C\u00e2u 8:\u00a0Cho T\u00ecm gi\u00e1 tr\u1ecb c\u1ee7a k C\u00e2u 9:\u00a0Cho h\u00e0m s\u1ed1 Kh\u1eb3ng \u0111\u1ecbnh n\u00e0o sau \u0111\u00e2y l\u00e0 \u0111\u00fang? A. H\u00e0m s\u1ed1 c\u00f3 hai \u0111i\u1ec3m c\u1ef1c tr\u1ecb B. H\u00e0m […]<\/p>\n","protected":false},"author":3,"featured_media":27215,"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 - \u0110\u1ec1 ki\u1ec3m tra Gi\u1ea3i t\u00edch 12 ch\u01b0\u01a1ng 2 (ph\u1ea7n 2)<\/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-de-kiem-tra-giai-tich-12-chuong-2-phan-2\/\" \/>\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 - \u0110\u1ec1 ki\u1ec3m tra Gi\u1ea3i t\u00edch 12 ch\u01b0\u01a1ng 2 (ph\u1ea7n 2)\" \/>\n<meta property=\"og:description\" content=\"C\u00e2u 7:\u00a0Gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh log336 – log3x > 1 A. 0 < x < 12 \u00a0\u00a0\u00a0B. x < 12\u00a0\u00a0\u00a0C. x > 12 \u00a0\u00a0\u00a0D. x < 1\/12 C\u00e2u 8:\u00a0Cho T\u00ecm gi\u00e1 tr\u1ecb c\u1ee7a k C\u00e2u 9:\u00a0Cho h\u00e0m s\u1ed1 Kh\u1eb3ng \u0111\u1ecbnh n\u00e0o sau \u0111\u00e2y l\u00e0 \u0111\u00fang? A. H\u00e0m s\u1ed1 c\u00f3 hai \u0111i\u1ec3m c\u1ef1c tr\u1ecb B. H\u00e0m […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lop12.edu.vn\/chuong-2-de-kiem-tra-giai-tich-12-chuong-2-phan-2\/\" \/>\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=\"2018-04-17T04:24:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/04\/1-216.png\" \/>\n\t<meta property=\"og:image:width\" content=\"246\" \/>\n\t<meta property=\"og:image:height\" content=\"74\" \/>\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-de-kiem-tra-giai-tich-12-chuong-2-phan-2\/\",\"url\":\"https:\/\/lop12.edu.vn\/chuong-2-de-kiem-tra-giai-tich-12-chuong-2-phan-2\/\",\"name\":\"Ch\u01b0\u01a1ng 2 - \u0110\u1ec1 ki\u1ec3m tra Gi\u1ea3i t\u00edch 12 ch\u01b0\u01a1ng 2 (ph\u1ea7n 2)\",\"isPartOf\":{\"@id\":\"https:\/\/lop12.edu.vn\/#website\"},\"datePublished\":\"2018-04-17T04:24:38+00:00\",\"dateModified\":\"2018-04-17T04:24:38+00:00\",\"author\":{\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/2da855e5d06b553ac0065157cc261a45\"},\"breadcrumb\":{\"@id\":\"https:\/\/lop12.edu.vn\/chuong-2-de-kiem-tra-giai-tich-12-chuong-2-phan-2\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/lop12.edu.vn\/chuong-2-de-kiem-tra-giai-tich-12-chuong-2-phan-2\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/lop12.edu.vn\/chuong-2-de-kiem-tra-giai-tich-12-chuong-2-phan-2\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/lop12.edu.vn\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Ch\u01b0\u01a1ng 2 – \u0110\u1ec1 ki\u1ec3m tra Gi\u1ea3i t\u00edch 12 ch\u01b0\u01a1ng 2 (ph\u1ea7n 2)\"}]},{\"@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 - \u0110\u1ec1 ki\u1ec3m tra Gi\u1ea3i t\u00edch 12 ch\u01b0\u01a1ng 2 (ph\u1ea7n 2)","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-de-kiem-tra-giai-tich-12-chuong-2-phan-2\/","og_locale":"en_US","og_type":"article","og_title":"Ch\u01b0\u01a1ng 2 - \u0110\u1ec1 ki\u1ec3m tra Gi\u1ea3i t\u00edch 12 ch\u01b0\u01a1ng 2 (ph\u1ea7n 2)","og_description":"C\u00e2u 7:\u00a0Gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh log336 – log3x > 1 A. 0 < x < 12 \u00a0\u00a0\u00a0B. x < 12\u00a0\u00a0\u00a0C. x > 12 \u00a0\u00a0\u00a0D. x < 1\/12 C\u00e2u 8:\u00a0Cho T\u00ecm gi\u00e1 tr\u1ecb c\u1ee7a k C\u00e2u 9:\u00a0Cho h\u00e0m s\u1ed1 Kh\u1eb3ng \u0111\u1ecbnh n\u00e0o sau \u0111\u00e2y l\u00e0 \u0111\u00fang? A. H\u00e0m s\u1ed1 c\u00f3 hai \u0111i\u1ec3m c\u1ef1c tr\u1ecb B. 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