(int )_(0)^pi ((xsin x))^2dx;

(int )_(0)^pi ((xsin x))^2dx..

[题目]-|||-不定积分 int xsin (x)^2dx= () .-|||-

[题目]计算定积分: (int )_(-dfrac {pi )(2)}^dfrac (pi {2)}((|x|+sin x))^2dx

int ln (x)^2dx=-|||-A

int ((arcsin x))^2dx -

int (arcsin x)^2dx$\int (\arcsin x)^{2}dx$

(int )_(-pi )^pi sqrt ({pi )^2-(x)^2}dx= )(int )_(-pi )^pi sqrt ({pi )^2-(x)^2}d

求int ((arcsin x))^2dx求

4.6】求int(x^2dx)/(sqrt(a^2)-x^(2))(a>0).4.6】求$\int\frac{x^{2}dx}{\sqrt{a^{2}-x^{2

[题目]若-|||-=(int )_(0)^2(x)^2dx =(int )_(0)^2(x)^3dx, =(int )_(0)^2sin xdx, 则a,b,