\u0110\u1ec1 thi h\u1ecdc k\u00ec 2 l\u1edbp 11 m\u00f4n To\u00e1n 2016 c\u1ee7a S\u1edf GD B\u1eafc Giang c\u00f3 \u0111\u00e1p \u00e1n chi ti\u1ebft, c\u00e1c em c\u00f9ng l\u00e0m th\u1eed v\u00e0 so s\u00e1nh \u0111\u00e1p \u00e1n nh\u00e9:<\/p>\n
C\u00e2u 3 ( 1.5 \u0111i\u1ec3m)<\/strong><\/p>\n Cho h\u00e0m s\u1ed1 y = x3<\/sup> + x2<\/sup> + (1-m)x c\u00f3 \u0111\u1ed3 th\u1ecb ( C) v\u1edbi m l\u00e0 tham s\u1ed1. \u0111i\u1ec3m M l\u00e0 \u0111i\u1ec3m n\u1eb1m tr\u00ean (C ) v\u00e0 c\u00f3 ho\u00e0nh \u0111\u1ed9 b\u1eb1ng 1<\/p>\n a)\u00a0\u00a0\u00a0\u00a0 Vi\u1ebft ph\u01b0\u01a1ng tr\u00ecnh ti\u1ebfp tuy\u1ebfn d c\u1ee7a (C ) t\u1ea1i \u0111i\u1ec3m M<\/p>\n b)\u00a0\u00a0\u00a0 T\u00ecm m \u0111\u1ec3 \u0111\u01b0\u1eddng th\u1eb3ng d \u0111i qua A(2;5)<\/p>\n C\u00e2u 4 (3 \u0111i\u1ec3m)<\/strong><\/p>\n Cho h\u00ecnh ch\u00f3p S.ABC c\u00f3 \u0111\u00e1y ABC \u0111\u1ec1u c\u1ea1nh a. h\u00ecnh chi\u1ebfu vu\u00f4ng g\u00f3c c\u1ee7a S l\u00ean m\u1eb7t ph\u1eb3ng (ABC) l\u00e0 trung \u0111i\u1ec3m H c\u1ee7a c\u1ea1nh AB. SC = a<\/p>\n a)\u00a0\u00a0\u00a0\u00a0 Ch\u1ee9ng minh AB vu\u00f4ng g\u00f3c v\u1edbi (SHC)<\/p>\n b)\u00a0\u00a0\u00a0 T\u00ednh \u0111\u1ed9 d\u00e0i \u0111o\u1ea1n SH theo a<\/p>\n c)\u00a0\u00a0\u00a0\u00a0 T\u00ednh cosin c\u1ee7a g\u00f3c gi\u1eefa hai m\u1eb7t ph\u1eb3ng (SAC) v\u00e0 (SBC)<\/p>\n <\/p>\n \u0110\u00e1p \u00e1n \u0111\u1ec1 thi h\u1ecdc k\u00ec 2 l\u1edbp 11 m\u00f4n To\u00e1n 2016 \u2013 S\u1edf GD B\u1eafc Giang<\/strong><\/p>\n <\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" \u0110\u1ec1 thi h\u1ecdc k\u00ec 2 l\u1edbp 11 m\u00f4n To\u00e1n 2016 c\u1ee7a S\u1edf GD B\u1eafc Giang c\u00f3 \u0111\u00e1p \u00e1n chi ti\u1ebft, c\u00e1c em c\u00f9ng l\u00e0m th\u1eed v\u00e0 so s\u00e1nh \u0111\u00e1p \u00e1n nh\u00e9: C\u00e2u 3 ( 1.5 \u0111i\u1ec3m) Cho h\u00e0m s\u1ed1 y = x3 + x2 + (1-m)x c\u00f3 \u0111\u1ed3 th\u1ecb ( C) v\u1edbi m l\u00e0 tham […]<\/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":[171],"tags":[],"yoast_head":"\n