$\"\"$

Let $\"\"$ be a differentiable function of $\"\"$ , and let $\"\"$ , $\"\"$ .

$\"\"$

The integral is $\"\"$ .

$\"\"$

Find the integral by using substitution method.

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

Substitute corresponding values in $\"\"$ .

$\"\"$

Apply formula : $\"\"$ .

$\"\"$

Substitute $\"\"$ in above expression.

$\"\"$ .

$\"\"$

$\"\"$ .