Answer
$1$
Work Step by Step
$i^{16}=i^{2\times8}=(i^{2})^{8}=(-1)^{8}=1$
Trigonometry 7th Edition
by McKeague, Charles P.; Turner, Mark D.
Published by
Cengage Learning
ISBN 10:
1111826854
ISBN 13:
978-1-11182-685-7
Chapters 1-8 - Cumulative Test - Page 477: 23
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