\u0110\u1ec1 thi h\u1ecdc k\u00ec 2 l\u1edbp 11 m\u00f4n To\u00e1n tr\u01b0\u1eddng THPT V\u00e2n T\u1ea3o 2015 c\u00f3 \u0111\u00e1p \u00e1n chi ti\u1ebft, c\u00e1c em tham kh\u1ea3o d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n
C\u00e2u 4:<\/strong> (3,0 \u0111i\u1ec3m) Cho tam gi\u00e1c \u0111\u1ec1u ABC c\u1ea1nh b\u1eb1ng a<\/em>. Tr\u00ean \u0111\u01b0\u1eddng th\u1eb3ng vu\u00f4ng g\u00f3c v\u1edbi m\u1eb7t ph\u1eb3ng (ABC) t\u1ea1i B, ta l\u1ea5y m\u1ed9t \u0111i\u1ec3m M sao cho MB = 2a<\/em>. G\u1ecdi I l\u00e0 trung \u0111i\u1ec3m c\u1ee7a BC.<\/p>\n a) (1,0 \u0111i\u1ec3m) Ch\u1ee9ng minh r\u1eb1ng AI ^ (MBC).<\/p>\n b) (1,0 \u0111i\u1ec3m) T\u00ednh g\u00f3c h\u1ee3p b\u1edfi \u0111\u01b0\u1eddng th\u1eb3ng IM v\u1edbi m\u1eb7t ph\u1eb3ng (ABC).<\/p>\n c) (1,0 \u0111i\u1ec3m) T\u00ednh kho\u1ea3ng c\u00e1ch t\u1eeb \u0111i\u1ec3m B \u0111\u1ebfn m\u1eb7t ph\u1eb3ng (MAI).<\/p>\n <\/p>\n <\/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 tr\u01b0\u1eddng THPT V\u00e2n T\u1ea3o 2015 c\u00f3 \u0111\u00e1p \u00e1n chi ti\u1ebft, c\u00e1c em tham kh\u1ea3o d\u01b0\u1edbi \u0111\u00e2y: \u0110\u1ec1 thi h\u1ecdc k\u00ec 2 l\u1edbp 11 m\u00f4n To\u00e1n – THPT V\u00e2n T\u1ea3o 2015 C\u00e2u 4: (3,0 \u0111i\u1ec3m) Cho tam gi\u00e1c \u0111\u1ec1u ABC c\u1ea1nh b\u1eb1ng a. Tr\u00ean \u0111\u01b0\u1eddng th\u1eb3ng vu\u00f4ng […]<\/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\u0110\u00e1p \u00e1n \u0111\u1ec1 thi h\u1ecdc k\u00ec 2 l\u1edbp 11 m\u00f4n To\u00e1n – THPT V\u00e2n T\u1ea3o 2015<\/strong><\/h4>\n