Answer
$\frac{4cis270^\circ}{2cis90^\circ}$
= $-2$
Work Step by Step
$\frac{4cis270^\circ}{2cis90^\circ}$
= $\frac{4}{2}cis(270^\circ - 90^\circ)$ (Quotient Theorem)
= $2cis180^\circ$
= $2(-1 + 0i)$
= $-2$
Trigonometry (10th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671775
ISBN 13:
978-0-32167-177-6
Chapter 8 - Review Exercises - Page 404: 24
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