How to do operations in polar form?
To write complex numbers in polar form, we use the formulas x=rcosθ, y=rsinθ, and r=√x2+y2. Then, z=r(cosθ+isinθ). See Example 8.5. 4 and Example 8.5.
What is the formula of polar coordinates?
Polar Coordinates Formula
(r, θ+2πn) or (-r, θ+(2n+1)π), where n is an integer. The value of θ is positive if measured counterclockwise. The value of θ is negative if measured clockwise. The value of r is positive if laid off at the terminal side of θ.