$\"\"$

Find $\"\"$ and $\"\"$ .

The trigonometric functions $\"\"$ .

Apply Pythagorean identity : $\"\"$ .

$\"\"$

Since $\"\"$ , the angle $\"\"$ is in second quadrant.

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

Apply quotient identity : $\"\"$ .

$\"\"$

Apply reciprocal identity : $\"\"$ .

$\"\"$

The values of $\"\"$ and $\"\"$ .