Precalculus (6th Edition)

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

Chapter 4 - Inverse, Exponential, and Logarithmic Functions - 4.3 Logarithmic Functions - 4.3 Exercises: 26

Answer

$5$

Work Step by Step

$x=12^{\log _{12}5}\Rightarrow \log _{12}x=\log _{12}12^{\log _{12}5}\Rightarrow \log _{12}x=\log _{12}5\Rightarrow 12^{x}=12^{5}\Rightarrow x=5$
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