(6)ax=+C(a>0,a≠1) (7I cos xdx=sinx+C (8) sin xd=-cosx+C ) sec xdx=」∫3d=nx+C (10) csc2xdx= 1dx =-cotx+c sin xC a a a dx x x = +  ln (6) (a >0, a  1) xdx = x +C  (7) cos sin xdx = − x +C  (8) sin cos dx x C x xdx = = +   tan cos 1 (9) sec 2 2 dx x C x xdx = = − +   cot sin 1 (10) csc 2 2