Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 6 - Analytic Trigonometry - Section 6.1 The Inverse Sine, Cosine, and Tangent Functions - 6.1 Assess Your Understanding - Page 474: 48

Answer

$-2$

Work Step by Step

Value of certain composite functions formula: $f(f^{-1}(x)) = \tan{(\tan^{-1}{x})}= x \hspace{25pt} -\infty \leq x \leq \infty$ $\therefore \tan{\left(\tan^{-1}{-(2)} \right)} = \boxed{-2}$
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.