College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter 1 - Section 1.3 - Complex Numbers - 1.3 Exercises: 92

Answer

$1$

Work Step by Step

Factor out as many $i^4$ as possible. $i^{40}=(i^4)^{10}$ Know that $i^4=1$. Substitute, and simplify. $(i^4)^{10}=1^{10}=1$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.