Answer
$u=5^{13}$
Work Step by Step
Recall the logarithmic property:
When $a^x=y$, then $\log_a{y}=x$
Applying this, we get:
When $\log_5{u}=13$, then $u=5^{13}$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
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 370: 16
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