$\"\"$

\

The integral is $\"\"$ .

\

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

\

Substitute corresponding values in $\"\"$ .

\

$\"\"$

\

$\"\"$

\

Solve the above integral by using partial fractions.

\

Partial fractions decomposition.

\

$\"\"$

\

$\"\"$

\

Equate coefficients of $\"\"$ terms.

\

$\"\"$

\

Equate constant terms.

\

$\"\"$

\

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

\

$\"\"$

\

$\"\"$ .

\

If $\"\"$ , then $\"\"$ .

\

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

\

$\"\"$ .

\

$\"\"$

\

$\"\"$

\

Apply formula : $\"\"$

\

$\"\"$

\

Substitute $\"\"$ in above equation.

\

$\"\"$ .

\

$\"\"$ .

\

$\"\"$

\

$\"\"$ .