The expression is .

Consider left hand side limit.

.

As  tends to , from the left hand side the limit approaches to .

Consider right hand side limit.

.

As  tends to , from the right hand side the limit approaches to .

If the limit exists, then the left hand side limit is equal to right hand side limit.

.

The limit exists.

The function approaches to  but not .

 is false.

 is false.