- Thread starter
- #1
- Mar 10, 2012
- 834
Hello MHB.
I have been preparing for my subject GRE and I need help on the following problem.
Find $\displaystyle\sum_{k=1}^\infty \frac{k^2}{k!}$.
Using the ratio test we know that the series converges but how to we find what it converges to?
I have been preparing for my subject GRE and I need help on the following problem.
Find $\displaystyle\sum_{k=1}^\infty \frac{k^2}{k!}$.
Using the ratio test we know that the series converges but how to we find what it converges to?