... PNMINHHAKTHIQUCGIA2015MễNTON Cõu1. 1. y= (2,0) x- x +1 Tpxỏcnh:D= Ă \{1}. Timcn ngang: y =2 lim y =2 xđƠ Timcnng: ... +Ơ y Ơ y 0,25 ư5 ư4 ư3 ư2 ư1 x ư1 ư2 2.Phngtrỡnhhonh giaoimca(C)v(D)l: Cõu 2 x- = x- x2 2x=0 x +1 0,25 x=0hayx=2suyray=ư1hayy=1 0,5 Vyta giaoml(0ư1)hay(21) 0,25 1.Giiphngtrỡnh: ( cos x sin x ... MD=2 0,25 GiAB=a=>SABCD = 3a.2 =12=>a=2 2 =>DC=4 0,25 GiC(c1c)=>DC2 =2(c+2)2 =>c=2hayc=ư6(loi)=>C(2ư1) =>B(32) 0,25 =>(BC):3xy 7=0 Cõu 8(1,0 (S): x + y + z - x + y - z - =0 v(P):x+y+z +2015= 0 im)...