Step 1:

The integral is $\"\"$

Rewrite the integral as $\"\"$

$\"\"$

The trigonometric identity is $\"\"$

$\"\"$

Assume $\"\"$ .

Differentiate on each side with respect to $\"\"$ .

$\"\"$

Substitute $\"\"$ in above integral expression.

$\"\"$

Power rule of integration: $\"\"$ , Where $\"\"$ is a constant of integration.

$\"\"$

Replace $\"\"$ in above expression.

$\"\"$

Solution:

$\"\"$ $\"\"$