What polar form of complex number actually means??
Writing a complex number of the form x + iy in polar coordinates of the form rcos θ +irsin θ is called Polar Form of the Complex Number
A complex number can be written in any of the following polar forms: rcos θ + irsin θ,r(cos θ + isin θ), or rcis θ, where r is known as modulus and θ is known as argument