\n| 1-C<\/td>\n | 2-A<\/td>\n | 3-D<\/td>\n | 4-B<\/td>\n | 5-D<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n C\u00e2u 1:<\/b><\/p>\n ![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/04\/4-96.png\") <\/p>\n
<=> 6x + 10 – x2<\/sup>\u00a0> 3 <=> x2<\/sup>\u00a0– 6x – 7 < 0 <=> -1 < x < 7.<\/p>\nCh\u1ecdn \u0111\u00e1p \u00e1n C<\/p>\n C\u00e2u 2:<\/b><\/p>\n Nh\u1eadn x\u00e9t r\u1eb1ng (7 + 4\u221a3)(7 – 4\u221a3) = 1 hay 7 – 4\u221a3 = (7 + 4\u221a3)-1<\/sup><\/p>\nDo \u0111\u00f3 b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh \u0111\u00e3 cho t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi<\/p>\n ![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/04\/5-85.png\") <\/p>\n
Ch\u1ecdn \u0111\u00e1p \u00e1n A.<\/p>\n C\u00e2u 3:<\/b><\/p>\n L\u1ea5y l\u00f4garit theo c\u01a1 s\u1ed1 3 hai v\u1ebf c\u1ee7a b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh , ta \u0111\u01b0\u1ee3c :<\/p>\n 2x – 1 < (3 – x)log3<\/sub>11 <=> (2 + log3<\/sub>11)x < 1 + 3log3<\/sub>11<\/p>\n![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/04\/6-74.png\") <\/p>\n
Ch\u1ecdn \u0111\u00e1p \u00e1n D.<\/p>\n C\u00e2u 4:<\/b><\/p>\n \u0110\u1eb7t t = 2016x<\/sup>\u00a0> 0, b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh \u0111\u00e3 cho tr\u1edf th\u00e0nh<\/p>\n![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/04\/7-63.png\") <\/p>\n
<=> 1 \u2264 t \u2264 2016<\/p>\n <=> 1 \u2264 2016x<\/sup>\u00a0\u2264 2016 <=> 0 \u2264 x \u2264 1<\/p>\nCh\u1ecdn \u0111\u00e1p \u00e1n B<\/p>\n C\u00e2u 5:<\/b><\/p>\n B\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh \u0111\u00e3 cho t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi<\/p>\n ![\"B\u00e0i](\"http:\/\/vietjack.com\/bai-tap-trac-nghiem-giai-tich-12\/images\/bai-tap-trac-nghiem-phuong-trinh-mu-va-bat-phuong-trinh-logarit-phan-1-7.PNG\") ![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/04\/8-50.png\") <\/p>\n
Ch\u1ecdn \u0111\u00e1p \u00e1n D.<\/p>\n","protected":false},"excerpt":{"rendered":" C\u00e2u 1:\u00a0T\u00ecm t\u1eadp nghi\u1ec7m c\u1ee7a b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh A. (-\u221e; -1) \u222a (7; +\u221e)\u00a0\u00a0\u00a0C. (7; +\u221e) B. (-1; 7)\u00a0\u00a0\u00a0D. (-7; 1) C\u00e2u 2:\u00a0Gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh C\u00e2u 3:\u00a0Gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh 32x – 1\u00a0< 113 – x C\u00e2u 4:\u00a0Gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh 2016x\u00a0+ 20161 – x\u00a0\u2264 2017 A. 1 \u2264 x \u2264 2016 \u00a0\u00a0\u00a0C. x […]<\/p>\n","protected":false},"author":3,"featured_media":27353,"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":"\n Ch\u01b0\u01a1ng 2 -B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: B\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh m\u0169 v\u00e0 b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh 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-bat-phuong-trinh-mu-va-bat-phuong-trinh-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: B\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh m\u0169 v\u00e0 b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh l\u00f4garit (Ph\u1ea7n 1)\" \/>\n<meta property=\"og:description\" content=\"C\u00e2u 1:\u00a0T\u00ecm t\u1eadp nghi\u1ec7m c\u1ee7a b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh A. 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(-\u221e; -1) \u222a (7; +\u221e)\u00a0\u00a0\u00a0C. (7; +\u221e) B. (-1; 7)\u00a0\u00a0\u00a0D. 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<\/p>\n![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/04\/3-106.png\")
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