x^2dx/(a^b-x^b)(a>0)的不定积分
问题描述:
x^2dx/(a^b-x^b)(a>0)的不定积分
答
积分x^2dx/(a^b-x^b)(a>0)=积分(-1+a^2/(a^2-x^2))dx
=积分(-1+(a/2)/(a-x)+(a/2)/(a-x))dx
=-x+(a/2)ln|(x+a)/(x-a)|+C