... x (1 ;2) (1,0 im Tớnh tớch phõn I = x + 0 ,25 ữdx x2 1 x dx I = x + ữdx = xdx + x x2 0 1 0 ,25 0 ,25 0 ,25 I1 = xdx = x = 1 I2 = x x2 dx t t = x tdt = xdx x = t = 2; x = ... H 1 1 19 28 5a = + 2= + 2= ị HK = 2 2 HK HS HI 15a 4a 60a 19 28 5a + Vy d(AB,SC) = 19 (1,0 im 0 ,25 0 ,25 0 ,25 Trong mt phng Oxy, cho tam giỏc ABC cú C(4; 5), phng trỡnh ng cao AD: x + 2y = 0, ng ... y ( ) = 0 ,25 y = v - Gii hn: xlim - Bng bin thi n: x - Ơ + y' y - 12 0 ,25 lim y = x + - - Ơ 0 + - 12 +Ơ 0 ,25 +Ơ th: 0 ,25 (1,0 im) Tỡm cỏc giỏ tr ca tham s m hm s y = x + 2( m + 2) x + m(m...