# A Simple Convergent Series

1. Jan 22, 2012

### antarctic

2. Jan 22, 2012

### mathman

Did you try to get the derivation of the partial sum formula? Once you have that the final result is obvious.

3. Jan 23, 2012

### antarctic

Thank you very much for the quick answer, but:

how do you get the partial sum formula? I can't seem to get that