Need some help with this question
does the series
Sum of $\displaystyle \frac{2^n}{n^2}$ from n=1 to infinity
i've tried ratio test method and end up with 1/2 which says the series converges but this series apparently diverges..
Need some help with this question
does the series
Sum of $\displaystyle \frac{2^n}{n^2}$ from n=1 to infinity
i've tried ratio test method and end up with 1/2 which says the series converges but this series apparently diverges..