Precalculus (6th Edition)

Published by Pearson

Chapter 7 - Trigonometric Identities and Equations - 7.5 Inverse Circular Functions - 7.5 Exercises - Page 707: 5

Answer

fill the blank with ... $\pi$ ...

Work Step by Step

For inverse functions, $f(f^{-1}(y))=y$ and $f^{-1}(f(x))=x.$ so, $f^{-1}(-1)=f^{-1}(f(\pi))=\pi.$ fill the blank with ... $\pi$ ...

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