# Math Help - Convergence help

1. ## Convergence help

Any help with these two would be highly appreciated! xx

2. ## Re: Convergence help

For the first one, divide both numerator and denominator by n^3, and then see what happens when n goes to infinity. You should get -2 as your answer.
For the second one, use absolute convergence to see if that series converges, if it does that this series would also converge