\u0110\u1ec1 thi h\u1ecdc k\u00ec 2 l\u1edbp 11 m\u00f4n To\u00e1n c\u1ee7a S\u1edf GD&\u0110T Th\u00e1i B\u00ecnh n\u0103m 2016, c\u00e1c em tham kh\u1ea3o chi ti\u1ebft b\u00ean d\u01b0\u1edbi:<\/p>\n
C\u00e2u 4 ( 2 \u0111i\u1ec3m)<\/strong><\/p>\n Cho h\u00e0m s\u1ed1 f (x)= 1+sin2x+2cosx (C )<\/p>\n a)\u00a0\u00a0\u00a0\u00a0 Vi\u1ebft ph\u01b0\u01a1ng tr\u00ecnh ti\u1ebfp tuy\u1ebfn c\u1ee7a \u0111\u1ed3 th\u1ecb (C ) t\u1ea1i \u0111i\u1ec3m c\u00f3 ho\u00e0nh \u0111\u1ed9 x = 0<\/p>\n b)\u00a0\u00a0\u00a0 T\u00ecm ho\u00e0nh \u0111\u1ed9 \u0111i\u1ec3m M thu\u1ed9c \u0111\u1ed3 th\u1ecb (C) bi\u1ebft ti\u1ebfp tuy\u1ebfn c\u1ee7a \u0111\u1ed3 th\u1ecb (C) t\u1ea1i \u0111i\u1ec3m M c\u00f3 h\u1ec7 s\u1ed1 g\u00f3c b\u1eb1ng 2<\/p>\n C\u00e2u 5 (3,5 \u0111i\u1ec3m)<\/strong><\/p>\n Cho h\u00ecnh ch\u00f3p S.ABCD c\u00f3 \u0111\u00e1y l\u00e0 h\u00ecnh thang vu\u00f4ng t\u1ea1i A v\u00e0 B, SA vu\u00f4ng g\u00f3c v\u1edbi m\u1eb7t\u00a0 \u0111\u00e1y, AD = 2a, \u00a0SA = AB = BC = a<\/p>\n a) Ch\u1ee9ng minh SB\u00a0\u22a5\u00a0BC, CD\u00a0\u22a5\u00a0(SAC)<\/p>\n b) T\u00ednh kho\u1ea3ng c\u00e1ch t\u1eeb \u0111i\u1ec3m A \u0111\u1ebfn m\u1eb7t ph\u1eb3ng (SBD)<\/p>\n c) T\u00ednh g\u00f3c gi\u1eefa hai \u0111\u01b0\u1eddng th\u1eb3ng SB v\u00e0 AC<\/p>\n d) T\u00ednh g\u00f3c gi\u1eefa hai m\u1eb7t ph\u1eb3ng (SAC) v\u00e0 (SBD).<\/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 c\u1ee7a S\u1edf GD&\u0110T Th\u00e1i B\u00ecnh n\u0103m 2016, c\u00e1c em tham kh\u1ea3o chi ti\u1ebft b\u00ean d\u01b0\u1edbi: C\u00e2u 4 ( 2 \u0111i\u1ec3m) Cho h\u00e0m s\u1ed1 f (x)= 1+sin2x+2cosx (C ) a)\u00a0\u00a0\u00a0\u00a0 Vi\u1ebft ph\u01b0\u01a1ng tr\u00ecnh ti\u1ebfp tuy\u1ebfn c\u1ee7a \u0111\u1ed3 th\u1ecb (C ) t\u1ea1i \u0111i\u1ec3m c\u00f3 ho\u00e0nh \u0111\u1ed9 x = […]<\/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