\u0110\u1ec1 thi h\u1ecdc k\u00ec 2 l\u1edbp 11 m\u00f4n To\u00e1n 2015 \u2013 THPT Nguy\u1ec5n Ch\u00ed Thanh t\u1ec9nh T\u00e2y Ninh gi\u00fap c\u00e1c em c\u1ee7ng c\u1ed1 ki\u1ebfn th\u1ee9c chu\u1ea9n b\u1ecb th\u1eadt t\u1ed1t cho k\u00ec thi s\u1eafp t\u1edbi:<\/p>\n
C\u00e2u 5: (3,0 \u0111i\u1ec3m) <\/strong>Cho h\u00ecnh ch\u00f3p S.ABC, \u0111\u00e1y\u00a0 l\u00e0 tam gi\u00e1c ABC vu\u00f4ng t\u1ea1i B, SA vu\u00f4ng g\u00f3c (ABC), AB = a, BC=, SA=\u00a0, . G\u1ecdi H l\u00e0 h\u00ecnh chi\u1ebfu c\u1ee7a B l\u00ean AC<\/p>\n a\/ \u00a0CMR BC vu\u00f4ng g\u00f3c (SAB)<\/p>\n b\/ CMR tam gi\u00e1c SBH vu\u00f4ng<\/p>\n c\/ T\u00ednh g\u00f3c gi\u1eefa AC v\u00e0 mp(SBC)<\/p>\n C\u00e2u 6 (1 \u0111i\u1ec3m):<\/strong> Ch\u1ee9ng minh r\u1eb1ng ph\u01b0\u01a1ng tr\u00ecnh 3x7<\/sup>– 7x6<\/sup> + 5 = 0 c\u00f3 \u00edt nh\u1ea5t 2 nghi\u1ec7m.<\/p>\n <\/p>\n <\/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 2015 \u2013 THPT Nguy\u1ec5n Ch\u00ed Thanh t\u1ec9nh T\u00e2y Ninh gi\u00fap c\u00e1c em c\u1ee7ng c\u1ed1 ki\u1ebfn th\u1ee9c chu\u1ea9n b\u1ecb th\u1eadt t\u1ed1t cho k\u00ec thi s\u1eafp t\u1edbi: \u0110\u1ec1 thi h\u1ecdc k\u00ec 2 l\u1edbp 11 m\u00f4n To\u00e1n 2015 \u2013 THPT Nguy\u1ec5n Ch\u00ed Thanh\u00a0 C\u00e2u 5: (3,0 \u0111i\u1ec3m) Cho h\u00ecnh […]<\/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\u00a0\u0110\u00e1p \u00e1n \u0111\u1ec1 thi h\u1ecdc k\u00ec 2 l\u1edbp 11 m\u00f4n To\u00e1n 2015 \u2013 THPT Nguy\u1ec5n Ch\u00ed Thanh\u00a0<\/strong><\/h4>\n