$\"\"$

\

The trigonometric function $\"\"$ .

\

$\"\"$

\

Opposite side = 4 and adjacent side = 5.

\

The right triangle diagram is

\

$\"graph$

\

$\"\"$

\

Now find the hypotenuse by using Pythagorean theorem.

\

Pythagorean theorem : $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

Take square root each side.

\

$\"\"$

\

Opposite side = $\"\"$ .

\

$\"\"$

\

$\"\"$ ,

\

$\"\"$ ,

\

$\"\"$ ,

\

$\"\"$ , and

\

$\"\"$ .

\

$\"\"$

\

The values of the trigonometric functions are $\"\"$ , $\"\"$ , $\"\"$ , $\"\"$ , and $\"\"$ .