Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 5 - 5.4 - Exponential and Logarithmic Equations - 5.4 Exercises - Page 395: 13

Answer

$x=\frac{1}{e}$

Work Step by Step

$\ln x=-1$ $e^{\ln x}=e^{-1}~$ (Use the inverse property: $e^{\ln x}=x$) $x=\frac{1}{e}$
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