... ũ ( x + 1)2 dx + ũ ( x + 1) dx 0 (1,0 dx 3d x im) ị v= t u = ln(3 x + 1) ị du= , dv = x+ ( x +1) x +1 pdngcụngthctớchphõntngphntacú 3x 2ln(3 x + 1) dx2 x +1 ( x+ 1) I =ũ 1 0,5 x d (3 x + 1)( ... Cõu Vỡ ( P // d1 ,d nờn(P)cúcpvtcp uu r 2ỷ ùu2 = (-1 - 3) 8.b ợ (1,0 Suyrapt(P)cúdng x + y + z + D = 0. im) 3+ D (1) ộ D= ộ( P ) : x + y + z+ = ) d ( M , ( P )= = ịờ ( (2) D = -9 P ) : x ... WWW.VNMATH.COM TRNGIHCVINH TRNGTHPTCHUYấN PNKHOSTCHTLNGLP12,LN1 ưNM2014 Mụn:TON Khi B ,D Thigianlmbi:180phỳt Cõu ỏpỏn im a)(1,0im) Cõu1. Tpxỏcnh: R\{1}. (2,0 Sbinthiờn: im) *Giihntivụcc:Tacú...