Use DMT to solve the following equations in polar form.
I'll show you how to do one, then you try to do the other...
.
Note that this complex number is in the third quadrant. The angle in the first quadrant is .
So the angle in the third quadrant, .
.
There are always three cube roots, and they are of the same magnitude and evenly spaced about a circle. So they differ by an angle of .
So the other solutions are
and .
But since , we rewrite this as
and .