(6)cos xdx=sinx+C (7)J∫sinxdx=-cosx+C 肉，a2=tm-C 9∫，ja-am+c (10) secxtan xdx secx+C (11) csc x cot xdx=-cscx+C (12) ∫e'dr=e'+C=  x x 2 cos d (8) =  sec xdx 2 tan x +C =  (7) sin xdx − cos x +C =  x x 2 sin d (9) =  csc xdx 2 − cot x +C =  (6) cos xdx sin x +C =  (10) sec x tan xdx sec x +C =  (11) csc x cot xdx − csc x +C =  e x x (12) d e C x +