A . 
B . 
C . 
D . 
int (sin )^3x(cos )^5xdx= __ A.int (sin )^3x(cos )^5xdx= __ B.int (sin )
A int cos xdx=sin x+CB int cos xdx=sin x+CC int cos xdx=sin x+CD int cos xdx=sin
(4)int_((pi)/(4))^(pi)/(3)(x)/(sin^2)xdx;(4)$\int_{\frac{\pi}{4}}^{\frac{\pi}{3}
求 int (sin )^4xdx
计算(int )_(-1)^1sqrt [3]({x)^2}(sin )^5xdx计算
5.设 _(1)=(int )_(0)^1xdx , _(2)=(int )_(0)^1sin xdx , _(3)=(int )_(0)^1tan xdx,
.(int )_(e)^x(sin )^2xdx.
.(int )_(e)^x(sin )^2xdx.
int sin xdx=cos x+cA. 对B. 错
(4) int (e)^x(sin )^2xdx.