# Math Help - Series

1. ## Series

if i got a rational closed-form of a series,

(expanding the rational will give a series,
but now not knowing the 'general term')

how to find its radius of convergence?

2. Originally Posted by graticcio
if i got a rational closed-form of a series,

(expanding the rational will give a series,
but now not knowing the 'general term')

how to find its radius of convergence?
It depends.

Give a particular example.