$\"\"$

The values of the trigonometric functions $\"\"$ .

Quotient identity : $\"\"$ .

$\"\"$

$\"\"$ .

Reciprocal identity : $\"\"$ .

$\"\"$

Reciprocal identity : $\"\"$ .

$\"\"$

Reciprocal identity : $\"\"$ .

$\"\"$

$\"\"$ .

$\"\"$

The remaining trigonometric functions are $\"\"$ , $\"\"$ , $\"\"$ , and $\"\"$ .