Answer
$ -i$
Work Step by Step
$i^27 = i^{24} \times i^3 = (i^4)^6 \times i^3 = 1^6 \times i^3 = 1 \times (-1)i = -i$
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 1 - Equations and Inequalities - 1.3 Complex Numbers - 1.3 Exercises - Page 113: 94
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