$\"\"$

The definite integral is $\"\"$ .

The degree of numerator is equal to the degree of denominator,hence perform the long division.

$\"\"$

The expression can be written as $\"\"$ .

$\"\"$ .

Consider $\"\"$ then $\"\"$ .

Substitute $\"\"$ and $\"\"$ in the above equation.

$\"\"$

Substitute $\"\"$ in the above equation.

$\"\"$

$\"\"$ .

$\"\"$

$\"\"$ .