... duong vfi9sin2.r * 4,gl-sn'zx =13+ 93/2-Zsintx -3 1-2 sin2x<) 9sin2r * 31 = 13 + 3- -: - gsin'x 92sn'r gstn- r<+ 9sin" * jl - -4 13 = o'. 9sin2 ... r NAtvt Zgt tTRtIOt{c THPT cHU vAx eN M6n To6n - Kh6i AThdi gian ldm bdi: 180 phrfit, khdng tC ttrOi gian giao dA.DA thi gom ol trang.I. pHAN cHUNG cHo rAr cA cAc rni ... trinh(t - 1)' +(y -1 )' = 5.Ar25Tqa d0 cria B,D ld nghi$m cria hQ{G-t)'*(v-r)'=5 e,l2x- Y =1v{y B(0 ,- t}, c (2.,2) ho4c B(2,,3} c(0,-t).Jx=0l.v=-t[x=2Lv=1.0,252....