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{"id":27177,"date":"2018-04-17T11:21:26","date_gmt":"2018-04-17T04:21:26","guid":{"rendered":"https:\/\/lop12.edu.vn\/?p=27177"},"modified":"2018-04-17T11:21:26","modified_gmt":"2018-04-17T04:21:26","slug":"chuong-2-de-kiem-tra-giai-tich-12-chuong-2-phan-3","status":"publish","type":"post","link":"https:\/\/lop12.edu.vn\/chuong-2-de-kiem-tra-giai-tich-12-chuong-2-phan-3\/","title":{"rendered":"Ch\u01b0\u01a1ng 2 – \u0110\u1ec1 ki\u1ec3m tra Gi\u1ea3i t\u00edch 12 ch\u01b0\u01a1ng 2 (ph\u1ea7n 3)"},"content":{"rendered":"

C\u00e2u 13:<\/b>\u00a0\u00d4ng A g\u1eedi ti\u1ebft ki\u1ec7m m\u1ed9t s\u1ed1 ti\u1ec1n v\u00e0o ng\u00e2n h\u00e0ng v\u1edbi h\u00ecnh th\u1ee9c l\u00e3i k\u00e9p v\u00e0 l\u00e3i su\u1ea5t 6,8% m\u1ed9t n\u0103m. \u00d4ng A mu\u1ed1n sau 5 n\u0103m c\u00f3 th\u1ec3 r\u00fat h\u1ebft s\u1ed1 ti\u1ec1n ti\u1ebft ki\u1ec7m tr\u00ean (c\u1ea3 g\u1ed1c l\u1eabn l\u00e3i) \u0111\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c \u00edt nh\u1ea5t 100 tri\u1ec7u \u0111\u1ed3ng. H\u1ecfi l\u00fac \u0111\u1ea7u \u00f4ng A ph\u1ea3i g\u1eedi s\u1ed1 ti\u1ec1n t\u1ed1i thi\u1ec3u l\u00e0 bao nhi\u00eau? Bi\u1ebft r\u1eb1ng s\u1ed1 ti\u1ec1n \u00f4ng A g\u1eedi l\u00e0 s\u1ed1 tr\u00f2n tri\u1ec7u \u0111\u1ed3ng.<\/p>\n

A. 70 tri\u1ec7u \u0111\u1ed3ng\u00a0\u00a0\u00a0B. 71 tri\u1ec7u \u0111\u1ed3ng\u00a0\u00a0\u00a0C. 72 tri\u1ec7u \u0111\u1ed3ng\u00a0\u00a0\u00a0D. 73 tri\u1ec7u \u0111\u1ed3ng<\/p>\n

C\u00e2u 14:<\/b>\u00a0T\u00ecm \u0111\u1ea1o h\u00e0m c\u1ee7a h\u00e0m s\u1ed1<\/p>\n

\"\"<\/p>\n

C\u00e2u 15:<\/b>\u00a0T\u00ecm c\u00e1c gi\u00e1 tr\u1ecb x th\u1ecfa m\u00e3n<\/p>\n

\"\"<\/p>\n

C\u00e2u 16:<\/b>\u00a0T\u00ednh t\u00edch c\u00e1c nghi\u1ec7m c\u1ee7a ph\u01b0\u01a1ng tr\u00ecnh 22x<\/sup>\u00a0– 8.2x<\/sup>\u00a0+ 12 = 0<\/p>\n

\"\"<\/p>\n

C\u00e2u 17:<\/b>\u00a0Gi\u1ea3 s\u1eed x l\u00e0 nghi\u1ec7m c\u1ee7a ph\u01b0\u01a1ng tr\u00ecnh<\/p>\n

\"\"<\/p>\n

A. 1\/2\u00a0\u00a0\u00a0B. 1\u00a0\u00a0\u00a0C. 2\u00a0\u00a0\u00a0D. 4<\/p>\n

C\u00e2u 18:<\/b>\u00a0Gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh 9x<\/sup>\u00a0\u2264 2.3x<\/sup>\u00a0+ 3<\/p>\n

A. 1\/3 \u2264 x \u2264 1\u00a0\u00a0\u00a0B. 1\/3 \u2264 x \u2264 3\u00a0\u00a0\u00a0C. x \u2264 1 \u00a0\u00a0\u00a0D. -1 \u2264 x \u22643<\/p>\n

H\u01b0\u1edbng d\u1eabn gi\u1ea3i v\u00e0 \u0110\u00e1p \u00e1n<\/b><\/p>\n\n\n\n
13-C<\/td>\n14-D<\/td>\n15-C<\/td>\n16-C<\/td>\n17-A<\/td>\n18-C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u00e2u 13:<\/b><\/p>\n

G\u1ecdi P l\u00e0 s\u1ed1 ti\u1ec1n \u00f4ng A g\u1eedi l\u00fac \u0111\u1ea7u. \u0110\u1ec3 r\u00fat \u0111\u01b0\u1ee3c 100 tri\u1ec7u \u0111\u1ed3ng sau 5 n\u0103m ta ph\u1ea3i c\u00f3<\/p>\n

P(1 + 0,068)5<\/sup>\u00a0= 100000000<\/p>\n

\"\"<\/p>\n

V\u00ec s\u1ed1 ti\u1ec1n g\u1eedi l\u00e0 tr\u00f2n tri\u1ec7u \u0111\u1ed3ng n\u00ean \u00f4ng A ph\u1ea3i g\u1eedi t\u1ed1i thi\u1ec3u 72 tri\u1ec7u \u0111\u1ed3ng.<\/p>\n

C\u00e2u 14:<\/b><\/p>\n

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

C\u00e2u 15:<\/b><\/p>\n

\"\"<\/p>\n

<=> 16x – 1<\/sup>\u00a0= 164x<\/sup>\u00a0<=> x – 1 = 4x <=> x = -1\/3<\/p>\n

C\u00e2u 16:<\/b><\/p>\n

\u0110\u1eb7t t = 2x<\/sup>\u00a0nh\u1eadn \u0111\u01b0\u1ee3c ph\u01b0\u01a1ng tr\u00ecnh t2<\/sup>\u00a0– 8t + 12 = 0<\/p>\n

\"\"<\/p>\n

T\u00edch hai nghi\u1ec7m b\u1eb1ng 1 + log3.log2<\/p>\n

C\u00e2u 17:<\/b><\/p>\n

\"\"<\/p>\n

<=> log2<\/sub>x + log2<\/sub>x = 4 <=> log2<\/sub>x = 2 <=> x = 22<\/sup>\u00a0= 4<\/p>\n

\"\"<\/p>\n

C\u00e2u 18:<\/b><\/p>\n

B\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh \u0111\u00e3 cho t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 32x<\/sup>\u00a0– 2.3x<\/sup>\u00a0– 3 \u2264 0<\/p>\n

\u0110\u1eb7t t = 3x<\/sup>\u00a0> 0, nh\u1eadn \u0111\u01b0\u1ee3c t2<\/sup>\u00a0– 2t – 3 \u2264 0 <=> -1 \u2264 t \u2264 3 <=> t \u2264 3 <=> 3x<\/sup>\u00a0\u2264 3 <=> x \u2264 1<\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e2u 13:\u00a0\u00d4ng A g\u1eedi ti\u1ebft ki\u1ec7m m\u1ed9t s\u1ed1 ti\u1ec1n v\u00e0o ng\u00e2n h\u00e0ng v\u1edbi h\u00ecnh th\u1ee9c l\u00e3i k\u00e9p v\u00e0 l\u00e3i su\u1ea5t 6,8% m\u1ed9t n\u0103m. \u00d4ng A mu\u1ed1n sau 5 n\u0103m c\u00f3 th\u1ec3 r\u00fat h\u1ebft s\u1ed1 ti\u1ec1n ti\u1ebft ki\u1ec7m tr\u00ean (c\u1ea3 g\u1ed1c l\u1eabn l\u00e3i) \u0111\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c \u00edt nh\u1ea5t 100 tri\u1ec7u \u0111\u1ed3ng. H\u1ecfi l\u00fac \u0111\u1ea7u \u00f4ng A […]<\/p>\n","protected":false},"author":3,"featured_media":27184,"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 3)<\/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-3\/\" \/>\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 3)\" \/>\n<meta property=\"og:description\" content=\"C\u00e2u 13:\u00a0\u00d4ng A g\u1eedi ti\u1ebft ki\u1ec7m m\u1ed9t s\u1ed1 ti\u1ec1n v\u00e0o ng\u00e2n h\u00e0ng v\u1edbi h\u00ecnh th\u1ee9c l\u00e3i k\u00e9p v\u00e0 l\u00e3i su\u1ea5t 6,8% m\u1ed9t n\u0103m. \u00d4ng A mu\u1ed1n sau 5 n\u0103m c\u00f3 th\u1ec3 r\u00fat h\u1ebft s\u1ed1 ti\u1ec1n ti\u1ebft ki\u1ec7m tr\u00ean (c\u1ea3 g\u1ed1c l\u1eabn l\u00e3i) \u0111\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c \u00edt nh\u1ea5t 100 tri\u1ec7u \u0111\u1ed3ng. H\u1ecfi l\u00fac \u0111\u1ea7u \u00f4ng A […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lop12.edu.vn\/chuong-2-de-kiem-tra-giai-tich-12-chuong-2-phan-3\/\" \/>\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=\"2018-04-17T04:21:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/04\/1-215.png\" \/>\n\t<meta property=\"og:image:width\" content=\"329\" \/>\n\t<meta property=\"og:image:height\" content=\"161\" \/>\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-3\/\",\"url\":\"https:\/\/lop12.edu.vn\/chuong-2-de-kiem-tra-giai-tich-12-chuong-2-phan-3\/\",\"name\":\"Ch\u01b0\u01a1ng 2 - \u0110\u1ec1 ki\u1ec3m tra Gi\u1ea3i t\u00edch 12 ch\u01b0\u01a1ng 2 (ph\u1ea7n 3)\",\"isPartOf\":{\"@id\":\"https:\/\/lop12.edu.vn\/#website\"},\"datePublished\":\"2018-04-17T04:21:26+00:00\",\"dateModified\":\"2018-04-17T04:21:26+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-3\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/lop12.edu.vn\/chuong-2-de-kiem-tra-giai-tich-12-chuong-2-phan-3\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/lop12.edu.vn\/chuong-2-de-kiem-tra-giai-tich-12-chuong-2-phan-3\/#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 3)\"}]},{\"@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 3)","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-3\/","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 3)","og_description":"C\u00e2u 13:\u00a0\u00d4ng A g\u1eedi ti\u1ebft ki\u1ec7m m\u1ed9t s\u1ed1 ti\u1ec1n v\u00e0o ng\u00e2n h\u00e0ng v\u1edbi h\u00ecnh th\u1ee9c l\u00e3i k\u00e9p v\u00e0 l\u00e3i su\u1ea5t 6,8% m\u1ed9t n\u0103m. \u00d4ng A mu\u1ed1n sau 5 n\u0103m c\u00f3 th\u1ec3 r\u00fat h\u1ebft s\u1ed1 ti\u1ec1n ti\u1ebft ki\u1ec7m tr\u00ean (c\u1ea3 g\u1ed1c l\u1eabn l\u00e3i) \u0111\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c \u00edt nh\u1ea5t 100 tri\u1ec7u \u0111\u1ed3ng. 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