$\"\"$

\

The integral is $\"\"$ .

\

Let $\"\"$ , then $\"\"$ .

\

$\"\"$ .

\

Consider $\"\"$ .

\

Apply integral reduction : $\"\"$ .

\

$\"\"$

\

$\"\"$

\

Consider $\"\"$ .

\

Again apply integral reduction : $\"\"$ .

\

$\"\"$

\

$\"\"$ .

\

$\"\"$

\

Substitute $\"\"$ in equation (1).

\

$\"\"$

\

Substitute $\"\"$ and $\"\"$ in $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$ .