# Limits at Negative Infinity with Radicals

In this tutorial we shall discuss an example related to the limit at negative infinity with the radial form of a function, i.e. .

Let us consider an example:

By rationalizing, we have

We divide the numerator and denominator of the fraction by . Since we are considering only negative values of and for , using these values we have

Using the relation , we have

By applying limits, we have