# Math Help - Complex numbers

1. ## Complex numbers

I know how to plot points on the argand diagram but the first two parts I dont know how to solve. Could someone please explain how to solve them?

2. Hi

One fourth root of $\omega = 16 e^{\frac{2\pi}{3}i}$ is

$16^{\frac{1}{4}} (e^{\frac{2\pi}{3}i})^{\frac{1}{4}} = 2 e^{\frac{\pi}{6}i}$