A int cos xdx=sin x+CB int cos xdx=sin x+CC int cos xdx=sin x+CD int cos xdx=sin
(18)int x^2arctan xdx.(18)$\int x^{2}\arctan xdx$.
计算(int )_(0)^1xarctan xdx.计算.
int ln xdx简答题（共2题，20.0分）1. (10.0分) $\int ln xdx$
int t(e)^-2tdt.-|||-.int (ln )^2xdx-|||-.int xsin xcos xdx.-|||-15. int (x)^2(co
[题目]计算定积分: (int )_(0)^1xarctan xdx.
int (sin )^3x(cos )^5xdx= __ A.int (sin )^3x(cos )^5xdx= __ B.int (sin )
(24 ) int (cos )^3xdx
int sin xdx=cos x+cA. 对B. 错
(15)int (x)^3(ln )^2xdx;