What is the complex number z=−4√3+4i represented in polar form?
A complex number in the form: z = a + bi can be written in polar form as: z = r.ei.theta, where r = √(a2 + b2) and theta = tan-1(b/a) (that's arctan(b/a))
You should plug your numbers into these.
I notice the polar form sometimes seems to be written as r.cis(theta) which is r.cos(theta) + i.r.sin(theta) (which I think is more like rectangular form!!).