\u0110\u1ec1 thi h\u1ecdc k\u00ec 1 l\u1edbp 12 m\u00f4n To\u00e1n t\u1ec9nh L\u00e2m \u0110\u1ed3ng 2015<\/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\/de-thi-hoc-ki-1-lop-12-mon-toan-tinh-lam-dong-2015\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u0110\u1ec1 thi h\u1ecdc k\u00ec 1 l\u1edbp 12 m\u00f4n To\u00e1n t\u1ec9nh L\u00e2m \u0110\u1ed3ng 2015\" \/>\n<meta property=\"og:description\" content=\"Tham kh\u1ea3o \u0111\u1ec1 thi cu\u1ed1i h\u1ecdc k\u00ec 1 l\u1edbp 12 m\u00f4n To\u00e1n n\u0103m 2015 c\u1ee7a s\u1edf GD&\u0110T L\u00e2m \u0110\u1ed3ng, c\u00e1c em xem chi ti\u1ebft d\u01b0\u1edbi \u0111\u00e2y: \u0110\u1ec1 thi h\u1ecdc k\u00ec 1 l\u1edbp 12 m\u00f4n To\u00e1n 2015 – L\u00e2m \u0110\u1ed3ng C\u00e2u 3. 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{"id":7145,"date":"2016-11-25T04:21:53","date_gmt":"2016-11-25T04:21:53","guid":{"rendered":"https:\/\/lop12.edu.vn\/?p=7145"},"modified":"2016-11-25T04:21:53","modified_gmt":"2016-11-25T04:21:53","slug":"de-thi-hoc-ki-1-lop-12-mon-toan-tinh-lam-dong-2015","status":"publish","type":"post","link":"https:\/\/lop12.edu.vn\/de-thi-hoc-ki-1-lop-12-mon-toan-tinh-lam-dong-2015\/","title":{"rendered":"\u0110\u1ec1 thi h\u1ecdc k\u00ec 1 l\u1edbp 12 m\u00f4n To\u00e1n t\u1ec9nh L\u00e2m \u0110\u1ed3ng 2015"},"content":{"rendered":"

Tham kh\u1ea3o \u0111\u1ec1 thi cu\u1ed1i h\u1ecdc k\u00ec 1 l\u1edbp 12 m\u00f4n To\u00e1n n\u0103m 2015 c\u1ee7a s\u1edf GD&\u0110T L\u00e2m \u0110\u1ed3ng, c\u00e1c em xem chi ti\u1ebft d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n

\u0110\u1ec1 thi h\u1ecdc k\u00ec 1 l\u1edbp 12 m\u00f4n To\u00e1n 2015 – L\u00e2m \u0110\u1ed3ng<\/strong><\/h3>\n
C\u00e2u 3. (2,5 \u0111i\u1ec3m)<\/strong><\/p>\n
Cho h\u00ecnh ch\u00f3p S.ABC c\u00f3 \u0111\u00e1y ABC l\u00e0 m\u1ed9t tam gi\u00e1c \u0111\u1ec1u c\u1ea1nh b\u1eb1ng a, SA vu\u00f4ng g\u00f3c v\u1edbi m\u1eb7t ph\u1eb3ng (ABC). G\u00f3c gi\u1eefa SC v\u00e0 m\u1eb7t ph\u1eb3ng (ABC) b\u1eb1ng 60^{0<\/sup><\/p>\n}
1. T\u00ednh th\u1ec3 t\u00edch kh\u1ed1i ch\u00f3p S.ABC theo a.<\/p>\n
2. X\u00e1c \u0111\u1ecbnh t\u00e2m O v\u00e0 t\u00ednh b\u00e1n k\u00ednh c\u1ee7a m\u1eb7t c\u1ea7u ngo\u1ea1i ti\u1ebfp h\u00ecnh ch\u00f3p S.ABC theo a.<\/p>\n
C\u00e2u 4. (1,0 \u0111i\u1ec3m)<\/strong><\/p>\n
Cho h\u00e0m s\u1ed1 y = x^{4<\/sup> \u2013 2(m^{2<\/sup> + 1)x^{2<\/sup> + 1, (m l\u00e0 tham s\u1ed1). T\u00ecm m \u0111\u1ec3 h\u00e0m s\u1ed1 c\u00f3 3 c\u1ef1c tr\u1ecb th\u1ecfa m\u00e3n gi\u00e1 tr\u1ecb c\u1ef1c ti\u1ec3u c\u1ee7a h\u00e0m s\u1ed1 \u0111\u1ea1t gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t.<\/p>\n}}}
$\"De$ <\/p>\n
Theo Tuyensinh247<\/strong><\/p>\n
\n
<\/ins><\/ins><\/ins><\/p>\n","protected":false},"excerpt":{"rendered":"
Tham kh\u1ea3o \u0111\u1ec1 thi cu\u1ed1i h\u1ecdc k\u00ec 1 l\u1edbp 12 m\u00f4n To\u00e1n n\u0103m 2015 c\u1ee7a s\u1edf GD&\u0110T L\u00e2m \u0110\u1ed3ng, c\u00e1c em xem chi ti\u1ebft d\u01b0\u1edbi \u0111\u00e2y: \u0110\u1ec1 thi h\u1ecdc k\u00ec 1 l\u1edbp 12 m\u00f4n To\u00e1n 2015 – L\u00e2m \u0110\u1ed3ng C\u00e2u 3. (2,5 \u0111i\u1ec3m) Cho h\u00ecnh ch\u00f3p S.ABC c\u00f3 \u0111\u00e1y ABC l\u00e0 m\u1ed9t tam gi\u00e1c \u0111\u1ec1u […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[167],"tags":[],"yoast_head":"\n\u0110\u1ec1 thi h\u1ecdc k\u00ec 1 l\u1edbp 12 m\u00f4n To\u00e1n t\u1ec9nh L\u00e2m \u0110\u1ed3ng 2015<\/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\/de-thi-hoc-ki-1-lop-12-mon-toan-tinh-lam-dong-2015\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u0110\u1ec1 thi h\u1ecdc k\u00ec 1 l\u1edbp 12 m\u00f4n To\u00e1n t\u1ec9nh L\u00e2m \u0110\u1ed3ng 2015\" \/>\n<meta property=\"og:description\" content=\"Tham kh\u1ea3o \u0111\u1ec1 thi cu\u1ed1i h\u1ecdc k\u00ec 1 l\u1edbp 12 m\u00f4n To\u00e1n n\u0103m 2015 c\u1ee7a s\u1edf GD&\u0110T L\u00e2m \u0110\u1ed3ng, c\u00e1c em xem chi ti\u1ebft d\u01b0\u1edbi \u0111\u00e2y: \u0110\u1ec1 thi h\u1ecdc k\u00ec 1 l\u1edbp 12 m\u00f4n To\u00e1n 2015 – L\u00e2m \u0110\u1ed3ng C\u00e2u 3. 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