$\"\"$

The function is $\"\"$ .

Anti derivative of cosine function is $\"\"$ .

Anti derivative of sine function is $\"\"$ .

Therefore the anti derivative of $\"\"$ is

$\"\"$

$\"\"$ , where $\"\"$ is a constant.

$\"\"$

Verification :

The function is $\"\"$ .

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

$\"\"$

$\"\"$ .

$\"\"$

$\"\"$ .