Question

The polar form of a complex number P is Z=r(cos + isin) where

r represents __________

a) Value

b) Point

c) Quadrant

d) Argument​

Answer 1

z = a+bi

z = r.(cos(θ)+i.sin(θ))

where, θ = arctan(b / a) is the argument

Here, r is the Modulus value of the complex number z.

i.e. r = √(a²+b²)