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{"id":27076,"date":"2018-04-16T16:37:55","date_gmt":"2018-04-16T09:37:55","guid":{"rendered":"https:\/\/lop12.edu.vn\/?p=27076"},"modified":"2018-04-16T16:37:55","modified_gmt":"2018-04-16T09:37:55","slug":"chuong-3-bai-tap-trac-nghiem-giai-tich-12-nguyen-ham-phan-2","status":"publish","type":"post","link":"https:\/\/lop12.edu.vn\/chuong-3-bai-tap-trac-nghiem-giai-tich-12-nguyen-ham-phan-2\/","title":{"rendered":"Ch\u01b0\u01a1ng 3 – B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: Nguy\u00ean h\u00e0m (ph\u1ea7n 2)"},"content":{"rendered":"

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

\"\"<\/p>\n

C\u00e2u 6:<\/b>\u00a0Trong c\u00e1c h\u00e0m s\u1ed1 sau h\u00e0m s\u1ed1 n\u00e0o kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t nguy\u00ean h\u00e0m c\u1ee7a f(x) = cosxsinx ?<\/p>\n

\"\"<\/p>\n

C\u00e2u 7:<\/b>\u00a0T\u00ecm I=\u222b(3x2<\/sup>\u00a0– x + 1)ex<\/sup>dx<\/p>\n

A. I = (3x2<\/sup>\u00a0– 7x +8)ex<\/sup>\u00a0+ C \u00a0\u00a0\u00a0 B. I = (3x2<\/sup>\u00a0– 7x)ex<\/sup>\u00a0+ C<\/p>\n

C. I = (3x2<\/sup>\u00a0– 7x +8) + ex<\/sup>\u00a0+ C \u00a0\u00a0\u00a0D. I = (3x2<\/sup>\u00a0– 7x + 3)ex<\/sup>\u00a0+ C<\/p>\n

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

\"\"<\/p>\n

C\u00e2u 9:<\/b>\u00a0M\u1ed9t v\u1eadt chuy\u1ec3n \u0111\u1ed9ng v\u1edbi v\u1eadn t\u1ed1c v(t) (m\/s) c\u00f3 gia t\u1ed1c<\/p>\n

\"\"<\/p>\n

V\u1eadn t\u1ed1c ban \u0111\u1ea7u c\u1ee7a v\u1eadt l\u00e0 6m\/s. V\u1eadn t\u1ed1c c\u1ee7a v\u1eadt sau 10 gi\u00e2y x\u1ea5p x\u1ec9 b\u1eb1ng<\/p>\n

A. 10m\/s\u00a0\u00a0\u00a0 B. 11m\/s\u00a0\u00a0\u00a0 C. 12m\/s\u00a0\u00a0\u00a0 D. 13m\/s.<\/p>\n

H\u01b0\u1edbng d\u1eabn gi\u1ea3i v\u00e0 \u0110\u00e1p \u00e1n<\/b><\/p>\n\n\n\n
5-D<\/td>\n6-D<\/td>\n7-A<\/td>\n8-C<\/td>\n9-D<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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

\u0110\u1eb7t u = ex<\/sup>\u00a0+ 1 => u’ = ex<\/sup>. Ta c\u00f3<\/p>\n

\"\"<\/p>\n

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

C\u00e1ch 1.<\/p>\n

\"\"<\/p>\n

C\u00e1ch 2. S\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn \u0111\u1ed5i s\u1ed1 ta c\u00f3:<\/p>\n

\u0110\u1eb7t u = cosx th\u00ec u\u2019 = -sinx v\u00e0 \u222bsinxcosxdx = -\u222bu.u’dx = -\u222budu<\/p>\n

\"\"<\/p>\n

V\u1eady ch\u1ecdn \u0111\u00e1p \u00e1n D.<\/p>\n

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

S\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p t\u00ednh nguy\u00ean h\u00e0m t\u1eebng ph\u1ea7n ta c\u00f3:<\/p>\n

\u0110\u1eb7t u = 3x2<\/sup>\u00a0– x + 1 v\u00e0 dv = ex<\/sup>dx ta c\u00f3 du = (6x – 1)dx v\u00e0 v = ex<\/sup>\u00a0. Do \u0111\u00f3:<\/p>\n

\u222b(3x2<\/sup>\u00a0– x + 1)ex<\/sup>dx = (3x2<\/sup>\u00a0– x + 1)ex<\/sup>\u00a0– \u222b(6x – 1)ex<\/sup>dx<\/p>\n

\u0110\u1eb7t u1<\/sub>\u00a0= 6x – 1; dv1<\/sub>\u00a0= ex<\/sup>dx Ta c\u00f3: du1<\/sub>\u00a0= 6dx v\u00e0 v1<\/sub>\u00a0= ex<\/sup>\u00a0.<\/p>\n

Do \u0111\u00f3 \u222b(6x – 1)ex<\/sup>dx = (6x – 1)ex<\/sup>\u00a0– 6\u222bex<\/sup>dx = (6x – 1)ex<\/sup>\u00a0– 6ex<\/sup>\u00a0+ C<\/p>\n

T\u1eeb \u0111\u00f3 suy ra<\/p>\n

\u222b(3x2<\/sup>\u00a0– x + 1)ex<\/sup>dx = (3x2<\/sup>\u00a0– x + 1)ex<\/sup>\u00a0– (6x – 7)ex<\/sup>\u00a0+ C = (3x2<\/sup>\u00a0– 7x + 8)ex<\/sup>\u00a0+ C<\/p>\n

V\u1eady ch\u1ecdn \u0111\u00e1p \u00e1n A.<\/p>\n

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

\"\"<\/p>\n

\"\"<\/p>\n

V\u1eady ch\u1ecdn \u0111\u00e1p \u00e1n C.<\/p>\n

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

V\u1eadn t\u1ed1c c\u1ee7a v\u1eadt b\u1eb1ng<\/p>\n

\"\"<\/p>\n

v\u1edbi t= 0 ta c\u00f3 C = v(0) = 6 khi \u0111\u00f3 v(10)\u2248 13.<\/p>\n

V\u1eady ch\u1ecdn \u0111\u00e1p \u00e1n D.<\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e2u 5: C\u00e2u 6:\u00a0Trong c\u00e1c h\u00e0m s\u1ed1 sau h\u00e0m s\u1ed1 n\u00e0o kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t nguy\u00ean h\u00e0m c\u1ee7a f(x) = cosxsinx ? C\u00e2u 7:\u00a0T\u00ecm I=\u222b(3×2\u00a0– x + 1)exdx A. I = (3×2\u00a0– 7x +8)ex\u00a0+ C \u00a0\u00a0\u00a0 B. I = (3×2\u00a0– 7x)ex\u00a0+ C C. I = (3×2\u00a0– 7x +8) + ex\u00a0+ C \u00a0\u00a0\u00a0D. I = (3×2\u00a0– […]<\/p>\n","protected":false},"author":3,"featured_media":27077,"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 3 - B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: Nguy\u00ean h\u00e0m (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-3-bai-tap-trac-nghiem-giai-tich-12-nguyen-ham-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 3 - B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: Nguy\u00ean h\u00e0m (ph\u1ea7n 2)\" \/>\n<meta property=\"og:description\" content=\"C\u00e2u 5: C\u00e2u 6:\u00a0Trong c\u00e1c h\u00e0m s\u1ed1 sau h\u00e0m s\u1ed1 n\u00e0o kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t nguy\u00ean h\u00e0m c\u1ee7a f(x) = cosxsinx ? C\u00e2u 7:\u00a0T\u00ecm I=\u222b(3x2\u00a0– x + 1)exdx A. I = (3x2\u00a0– 7x +8)ex\u00a0+ C \u00a0\u00a0\u00a0 B. I = (3x2\u00a0– 7x)ex\u00a0+ C C. I = (3x2\u00a0– 7x +8) + ex\u00a0+ C \u00a0\u00a0\u00a0D. I = (3x2\u00a0– […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lop12.edu.vn\/chuong-3-bai-tap-trac-nghiem-giai-tich-12-nguyen-ham-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=\"2018-04-16T09:37:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/04\/1-210.png\" \/>\n\t<meta property=\"og:image:width\" content=\"186\" \/>\n\t<meta property=\"og:image:height\" content=\"297\" \/>\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-3-bai-tap-trac-nghiem-giai-tich-12-nguyen-ham-phan-2\/\",\"url\":\"https:\/\/lop12.edu.vn\/chuong-3-bai-tap-trac-nghiem-giai-tich-12-nguyen-ham-phan-2\/\",\"name\":\"Ch\u01b0\u01a1ng 3 - B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: Nguy\u00ean h\u00e0m (ph\u1ea7n 2)\",\"isPartOf\":{\"@id\":\"https:\/\/lop12.edu.vn\/#website\"},\"datePublished\":\"2018-04-16T09:37:55+00:00\",\"dateModified\":\"2018-04-16T09:37:55+00:00\",\"author\":{\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/2da855e5d06b553ac0065157cc261a45\"},\"breadcrumb\":{\"@id\":\"https:\/\/lop12.edu.vn\/chuong-3-bai-tap-trac-nghiem-giai-tich-12-nguyen-ham-phan-2\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/lop12.edu.vn\/chuong-3-bai-tap-trac-nghiem-giai-tich-12-nguyen-ham-phan-2\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/lop12.edu.vn\/chuong-3-bai-tap-trac-nghiem-giai-tich-12-nguyen-ham-phan-2\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/lop12.edu.vn\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Ch\u01b0\u01a1ng 3 – B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: Nguy\u00ean h\u00e0m (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 3 - B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: Nguy\u00ean h\u00e0m (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-3-bai-tap-trac-nghiem-giai-tich-12-nguyen-ham-phan-2\/","og_locale":"en_US","og_type":"article","og_title":"Ch\u01b0\u01a1ng 3 - B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: Nguy\u00ean h\u00e0m (ph\u1ea7n 2)","og_description":"C\u00e2u 5: C\u00e2u 6:\u00a0Trong c\u00e1c h\u00e0m s\u1ed1 sau h\u00e0m s\u1ed1 n\u00e0o kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t nguy\u00ean h\u00e0m c\u1ee7a f(x) = cosxsinx ? C\u00e2u 7:\u00a0T\u00ecm I=\u222b(3x2\u00a0– x + 1)exdx A. I = (3x2\u00a0– 7x +8)ex\u00a0+ C \u00a0\u00a0\u00a0 B. I = (3x2\u00a0– 7x)ex\u00a0+ C C. I = (3x2\u00a0– 7x +8) + ex\u00a0+ C \u00a0\u00a0\u00a0D. 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