Homework Statement
I need help finding the interval of convergence for f(x) = 3/(1-x^4).
I think that the summation would be \Sigma 3 (x^4n) from n=0 to infinity, but I'm not sure how to get the interval of convergence.
Homework Equations
f(x) = 3/(1-x^4)
The Attempt at a Solution...