- #1

Randall

- 22

- 0

## Homework Statement

Use the limit comparison test to check for convergence or divergence: Sum from n=1 to infinity of ((2n)^2+5)^-3

## Homework Equations

let lim n to infinity of An/Bn = c

1) if 0<c<infinity then either both converge or both diverge

2) if c=0 and sum Bn converges, so does sum An

3) if c=infinity and sum Bn diverges, so does sum An

## The Attempt at a Solution

see attached - I'm a little confused. It seems that it would be easy to pick a comparison series to "force" the answer that you want...