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 - Test - Page 407: 13a

Answer

$(1-i)^3 = -2-2i$

Work Step by Step

$(1-i)^3 = (1-i)^2~(1-i)$ $(1-i)^3 = (1-2i-1)~(1-i)$ $(1-i)^3 = (-2i)~(1-i)$ $(1-i)^3 = -2-2i$

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