Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 7 - Analytic Trigonometry - Chapter Review - Review Exercises - Page 505: 3


$\tan^{-1} (1)=\frac{\pi}{4}$

Work Step by Step

Let $x$ =$\tan^{-1}(1)$ implies that: $x$ =$\tan^{-1}(1)$ implies that $\tan (x) =1$ Using exact values, $x=\frac{\pi}{4}$ Therefore: $\tan^{-1}(1)=\frac{\pi}{4}$
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.