Answer
$-2-2i$
Work Step by Step
Use the formula $(1-b)^3=1-3b+3b^2-b^3$, we have $(1-i)^3=1-3i+3i^2-i^3=1-3i-3+i=-2-2i$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 8 - Application of Trigonometry - Quiz - Page 811: 4
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