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

Find a power series representation for the function and determine the radius of convergence.

heres the problem: http://img301.imageshack.us/img301/4514/30437250jj2.png [Broken]

2. Relevant equations

3. The attempt at a solution

i believe the derivative of arctant = 1/(1+t^2)

thats all i know for now, whats next?

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# Homework Help: Find power series representation

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