1/[x^2(x^2+1)]的原函数怎么求呢?

2025-04-02 13:28:18
推荐回答(1个)
回答1:

∫dx/[x^2.(x^2+1)]
=∫ [1/x^2 -1/(x^2+1) ] dx
= -1/x - arctanx + C