#1**0 **

Polar form is \( z=r(cosθ+i(sinθ))\) for some complex number \(z\).

PartialMathematician Dec 14, 2018

#3**0 **

I am not entirely sure, but I looked at this website to understand polar form. The website also gives an example of an irrational complex number in polar form.

PartialMathematician
Dec 14, 2018