$\"\"$

The expression is $\"\"$ .

Where the value of $\"\"$ is $\"\"$ and $\"\"$ is $\"\"$ .

The polar coordinates is $\"\"$ .

Graph:

Plot the polar point $\"\"$ :

$\"\"$

Simplify the expression.

$\"\"$

Trigonometric formulas: $\"\"$ and $\"\"$ .

$\"\"$

The rectangular form of $\"\"$ is $\"\"$ .

$\"\"$

Graph of the polar point $\"\"$ is

$\"\"$

The rectangular form of $\"\"$ is $\"\"$ .