1. The problem statement, all variables and given/known data Can anyone explain to me why the answer to this question is D?: http://puu.sh/2FoET.png [Broken] 3. The attempt at a solution I'm not really sure where to begin, except I know that the series is centered at 0. I was also thinking that the given x's was the Interval of Convergence, but then, that wouldn't really make sense with the series centered at 0.