Answer
$-45^o$
Work Step by Step
RECALL :
For $y=\tan^{-1}{(x)}$, $y$ must be in the interval $(-90^o, 90^o)$.
Use a scientific calculator's inverse tangent function in degree mode to obtain:
$\theta = \tan^{-1}{(-1)}
\\\theta=-45^o$
Trigonometry (10th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671775
ISBN 13:
978-0-32167-177-6
Chapter 6 - Test - Page 287: 3b
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter 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.
