# Infinite Series

1. Jan 26, 2009

### abhi@maths

1. Find whether the following series converges or diverges or is oscillatory

$$\sum1/(n^3*(sin^2 n))$$

Last edited: Jan 26, 2009
2. Feb 7, 2009

### nitro

\sum (1/n^3) converges
sin^2 n is always positive!

try to combine these two facts together