Answer
$13x$
Work Step by Step
RECALL:
$\log_b{b^n}=n.$
The natural logarithm has $b=e$.
Use the rule above with $b=e$ and $n=13x$ to obtain
$\ln{e^{13x}}=13x.$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 3 - Section 3.2 - Exponential Functions - Exercise Set - Page 464: 96
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