某些积分的方程(组)解法

Solutions of Equation(s) to Some Integration

通过变量替换或分部积分可建立关于某些积分的方程,通过引入辅助积分可建立关于某些积分的方程组,解这些方程或方程组可得所求积分.

The equation of some integration can be established through the method of variable substitution or integration by parts,and equations of that can be established by introducing subsidiary integral,so the integration can be solved.