Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Chapter 8 - Section 8.3 - Products and Quotients in Trigonometric Form - 8.3 Problem Set - Page 439: 3

Answer

We use de Moivre’s Theorem to find $powers$ of complex numbers written in trigonometric form.

Work Step by Step

We use de Moivre’s Theorem to find $powers$ of complex numbers written in trigonometric form. So, if $z=rcis\theta$, then $z^{n}=r^{n}cis(n\theta)$
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