$\"\"$

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

Quotient identity: $\"\"$ .

$\"\"$

$\"\"$ .

Reciprocal identity: $\"\"$ .

$\"\"$

Reciprocal identity: $\"\"$ .

$\"\"$

$\"\"$ .

Reciprocal identity: $\"\"$ .

$\"\"$ .

$\"\"$

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

and $\"\"$ .