Infinite Limits : In this section we will see limits whose value is infinity or minus infinity. 

The primary thing we have to probably do here is to define just what we mean while we say that a limit contain a value of infinity or minus infinity.

Definition

We say

If we make f(x) arbitrarily large for all x adequately close to x=a, from both of the sides, without in fact letting x = a .

We say

if we can make f(x) arbitrarily large & negative for all x adequately close to x=a, from both of the sides, without letting x= a actually.

These definitions can be modified appropriately for the one-sided limits as well.

Let's start off with a typical example showing infinite limits.