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 4 - Exponential and Logarithmic Functions - Chapter Review - Review Exercises - Page 369: 1

Answer

(a) $ -4$. (b) $ 1$. (c) $ -6$. (d) $ -6$.

Work Step by Step

(a) $(g\circ f)(-8)=g(f(-8))=g(2)=-4$. (b) $(f\circ g)(-8)=f(g(-8))=f(-2)=1$. (c) $(g\circ g)(7)=g(g(7))=g(0)=-6$. (d) $(g\circ f)(-5)=g(f(-5))=g(4)=-6$.
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