$\"\"$

The function is $\"\"$ .

Consider $\"\"$ .

Apply derivative on each side with respect to $\"\"$ .

$\"\"$

Substitute $\"\"$ and $\"\"$ in the integral.

$\"\"$

Integral of hyperbolic function : $\"\"$ .

$\"\"$

Substitute $\"\"$ .

$\"\"$

$\"\"$ $\"\"$ .

$\"\"$

$\"\"$ $\"\"$ .