Hi, meme22!

I assume this is the problem you are trying to solve:

Is that right?

First of all, you can easily see what this limitshouldbe if you observe that

.

So, we should suspect the limit to be zero. Now, to solve it using the properties of limits, here are some hints:

1. Use the fact that to rewrite the numerator

2. Make sure that you are familiar with this special limit:

Does that help?