Step 1:

\

The function is $\"\"$ .

\

Quotient law of limits : $\"\"$ .

\

$\"\"$

\

Multiply each side by $\"\"$ .

\

$\"\"$

\

Difference law of limits : $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

Solution :

\

$\"\"$ .