Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n<\/p>\n<\/div>\n
C\u00e2u 7. (1 \u0111i\u1ec3m)<\/strong><\/p>\n Cho h\u00ecnh ch\u00f3p S.ABC c\u00f3 SA vu\u00f4ng g\u00f3c v\u1edbi m\u1eb7t ph\u1eb3ng (ABC), SA = 8a, tam g\u00edac ABC \u0111\u1ec1u c\u1ea1nh b\u1eb1ng 4a; M, N l\u1ea7n l\u01b0\u1ee3t l\u00e0 trung \u0111i\u1ec3m c\u1ee7a c\u1ea1nh SB v\u00e0 BC, T\u00ednh theo a th\u1ec3 t\u00edch h\u00ecnh ch\u00f3p S.ABC v\u00e0 kho\u1ea3ng c\u00e1ch t\u1eeb \u0111i\u1ec3m B \u0111\u1ebfn m\u1eb7t ph\u1eb3ng (AMN).<\/p>\n C\u00e2u 8. (1 \u0111i\u1ec3m)<\/strong><\/p>\n Trong m\u1eb7t ph\u1eb3ng t\u1ecda \u0111\u1ed9 Oxy, cho \u2206ABC c\u00f3 tr\u1ecdng t\u00e2m G(8\/3;0) v\u00e0 c\u00f3 \u0111\u01b0\u1eddng tr\u00f2n ngo\u1ea1i ti\u1ebfp l\u00e0 (C) t\u00e2m I. \u0110i\u1ec3m M(0;1), N(4;1) l\u1ea7n l\u01b0\u1ee3t l\u00e0 \u0111i\u1ec3m \u0111\u1ed1i x\u1ee9ng c\u1ee7a I qua c\u00e1c \u0111\u01b0\u1eddng th\u1eb3ng AB, AC. \u0110\u01b0\u1eddng th\u1eb3ng BC qua \u0111i\u1ec3m K(2; -1). Vi\u1ebft ph\u01b0\u01a1ng tr\u00ecnh \u0111\u01b0\u1eddng tr\u00f2n (C).<\/p>\n <\/p>\n <\/strong><\/p>\n Xem b\u1ed9 \u0111\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n n\u0103m 2016 t\u1ea1i \u0111\u00e2y: http:\/\/tuyensinh247.com\/khoa-98-de-thi-thu-thpt-quoc-gia-toan-hoc-hay-nhat-cua-cac-truong-thpt-chuyen-tren-toan-quoc-nam-2016-k151.html<\/strong><\/p>\n<\/p>\n T\u1ea5t c\u1ea3 n\u1ed9i dung b\u00e0i vi\u1ebft. C\u00e1c em h\u00e3y xem th\u00eam v\u00e0 t\u1ea3i file chi ti\u1ebft t\u1ea1i \u0111\u00e2y:<\/strong>Download<\/p>\n","protected":false},"excerpt":{"rendered":" Tr\u01b0\u1eddng THPT Tr\u1ea7n H\u01b0ng \u0110\u1ea1o, t\u1ec9nh \u0110\u1eafc N\u00f4ng \u0111\u00e3 t\u1ed5 ch\u1ee9c thi th\u1eed THPTQG l\u1ea7n 2 n\u0103m 2016 m\u00f4n To\u00e1n ng\u00e0y 28\/12\/2015, xem \u0111\u1ec1 thi v\u00e0 \u0111\u00e1p \u00e1n d\u01b0\u1edbi \u0111\u00e2y: Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n C\u00e2u 7. (1 \u0111i\u1ec3m) Cho h\u00ecnh ch\u00f3p S.ABC c\u00f3 SA vu\u00f4ng g\u00f3c v\u1edbi m\u1eb7t ph\u1eb3ng […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[28],"tags":[],"yoast_head":"\n\u0110\u00e1p \u00e1n \u0111\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n 2016 – THPT Tr\u1ea7n H\u01b0ng \u0110\u1ea1o l\u1ea7n 2<\/span><\/h3>\n