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

∫1/(x^{2}+4)^{2}

2. Relevant equations

∫dx/(x^{2}+a^{2})=(1/a)arctan(x/a)+c

3. The attempt at a solution

This looks like an arctan integral or a trig substitution, but in its current form neither would work without manipulation. I'm mainly looking for how to manipulate it to use one of these methods

Thanks!

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# Homework Help: Help manipulating integral to use arctan or trig-sub methods

**Physics Forums | Science Articles, Homework Help, Discussion**