$\"\"$

The complex number in trigonometric form is $\"\"$ .

The value of $\"\"$ change into another form as follows:

$\"\"$ and

$\"\"$ .

$\"\"$ (Write original trigonometric form)

$\"\"$ (Substitute $\"\"$ )

$\"\"$ (Simplify) $\"\"$

The standard form of complex number is $\"\"$ .