... 4]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]] - 4 - Ôn Thi TNPT Năm 2009b. =*1x (3 cos2x)dx0+∫*x 3 1 3 1 1 1 2 11[ sin2x] [ sin2] [ sin0] sin20ln3 2 ln3 2 ln3 2 ln 3 2+ = + − + = +c. 2' 3 3i∆ = − =' ... −(7[⇔OJ0-"J14 3 x 3x 1 k(x ) 1 (1)923x 3 k (2)− + = − −− =:00%H)2 3 23x 7x 4 0 x ,x 1,x 2 3 − + = ⇔ = − = =2 5 5 43 (2) x = k tt ( ) : y x1 3 3 3 27−→ ... −rn (3; 1;0)TgEX7'"l>:Y:,= = −uuurr rn [n ,AB] (3; 9; 13) R Tgl)+⇒ + − + == −r Qua M(1;0;5)(R) : 3x 9y 13z 33 0+ vtpt : n (3; 9; 13) RCâu...