$\"\"$

Write the trigonometric expression $\"\"$ in algebraic form.

From the given data $\"\"$ , where $\"\"$ .

If $\"\"$ , then $\"\"$ .

From the figure : $\"\"$ .

Pythagorean theorem : $\"\"$ .

$\"\"$

The trigonometric ratio : $\"\"$ .

$\"\"$ .

$\"\"$

The algebraic form of the expression $\"\"$ is $\"\"$ .