(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Find the following intergral...

2. Relevant equations

[tex]\int{\frac{-1}{(x^2+1)^2}dx}[/tex]

3. The attempt at a solution

I can't get anywhere with this... any hints?

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# Homework Help: How to integrate int -1/(x^2 +1)^2 dx

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