Precalculus (6th Edition)

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: 93

Answer

$ -i$

Work Step by Step

$i^23 = i^{20} \times i^3 = (i^4)^5 \times i^3 = 1^5 \times i^3 = 1 \times (-1)i = -i$
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.