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?
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Hi One fourth root of $\displaystyle \omega = 16 e^{\frac{2\pi}{3}i}$ is $\displaystyle 16^{\frac{1}{4}} (e^{\frac{2\pi}{3}i})^{\frac{1}{4}} = 2 e^{\frac{\pi}{6}i}$
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