Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 10 - Section 10.7 - Complex Numbers - Practice - Page 738: 19



Work Step by Step

$i^{40}=(i^{4})^{10}$ As $i^{4}=1$, $(i^{4})^{10}=(1)^{10}=1$. Therefore, $i^{40}=1$.
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