Finding the limit of $\frac{\cos(\pi n)}{n^2}$ I know all of the tests for limits of series but unsure which one to use for this? 
Can I use the comparison test and compare it with $\frac{1}{n^2}$ or should I use a different approach?
Edit: Perhaps someone could edit the title in latex to make it easier to read?

Hint:
Use the squeeze method
$$0\le\left\vert\frac{\cos(n\pi)}{n^2}\right\rvert\le\frac1{n^2}$$
