Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 4 - Inverse, Exponential, and Logarithmic Functions - Chapter 4 Test Prep - Review Exercises: 52

Answer

A,C,D

Work Step by Step

$5^{x}=9\Rightarrow x=\log _{5}9$ $5^{x}=9\Rightarrow \log 5^{x}=\log 9\Rightarrow x\log 5=\log 9\Rightarrow x=\dfrac {\log 9}{\log 5}$ $5^{x}=9\Rightarrow \ln 5^{x}=\ln 9\Rightarrow x\ln 5=\ln 9\Rightarrow x=\dfrac {\ln 9}{\ln 5}$ So A,C,D are solution set
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