Answer
$-1.54$
Work Step by Step
Suppose $\theta = \tan^{-1} (-30)$
This gives: $\tan \theta=-30$
Now, substitute the equation into a calculator (in radian mode).
Therefore, we have $ \tan^{-1} (-30)=-1.54$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 4 - Section 4.7 - Inverse Trigonometric Functions - Exercise Set - Page 626: 28
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.
