The expression is .

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

.

The function decreases without bound as approaches from left.

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

.

The function increases without bound as approaches from right.

Since left hand limit is not equal to right hand limit, the limit does not exist.

Limit does not exist.

The function decreases without bound as approaches from left.

The function increases without bound as approaches from right.