$\"\"$

The angle is $\"\"$ .

Obtain sine and cosine directly from the figure of unit circle.

The other trigonometric functions of $\"\"$ are found by using the ratio and reciprocal identities.

$\"\"$ ,

$\"\"$ .

$\"\"$

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