Question

What is the polar form of a complex number?

Answer 1

Polar form of a complex number:

A complex number is expressed in terms of an angle and its distance from the origin.

The polar form of a complex number $z=x+iy$ is:

$z=r\left(\cos \theta +i\sin \theta \right)$

Where,

$r=\sqrt{x^2+y^2}$ and $\theta ={\tan }^{-1}\left(\frac{y}{x}\right)$