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

Ʃ (from n=1 to ∞) (4x-1)^2n / (n^2)

Find the radius and interval of convergence

3. The attempt at a solution

I managed to do the ratio test and get to this point:

| (4x-1)^2 |< 1

But now what? How do you get the radius and interval? Any help will be appreciated!

Thanks

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# Homework Help: Radius of convergence (power series) problem

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