The function is .

When  approaches  from the left side,  is a small positive number.

Thus, the quotient  is a large negative number and  approaches  negative infinity form the left of .

.

  decreases without bound as  approaches  from the left.

Verify the limit by using the table.

As limit in which  decreases  without bound as  approaches  from the left is called as an infinite limit.

Therefore, .

.