$\"\"$

The trigonometric expression is $\"\"$ .

Let $\"\"$ .

Apply trigonometric inverse form: $\"\"$ .

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

Find the adjacent side by applying the pythagorean theorem.

$\"graph$

$\"\"$

$\"\"$ \ \

$\"\"$ .

$\"\"$

$\"\"$ .

$\"\"$

The simplified expression is $\"\"$ .