Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 8 - Complex Numbers, Polar Equations, and Parametric Equations - Section 8.1 Complex Numbers - 8.1 Exercises - Page 357: 26

Answer

$x=±6i$

Work Step by Step

$x^{2}=-36$ $x=±\sqrt -36$ $x=±(\sqrt 36\times\sqrt -1)$ $x=±6i$ We know that $\sqrt 36=6$, because $6^{2}=36$. We know that $\sqrt -1=i$, because $-1^{2}=i$.
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.