1. The problem statement, all variables and given/known data Find the radius of convergence of [tex]\sum[/tex] n=1 to ∞ of [(-1)^(n-1) x^(n)/(n)] and give a formula for the value of the series at the right hand endpoint. 2. Relevant equations 3. The attempt at a solution Not really sure how to start this. I know I'm supposed to use the root test or the ratio test and then probably Abel's Thm for series. but the n-1 in the series is throwing me off. I've never seen that before. Any help is appreciated.