Calculus with Applications (10th Edition)

Published by Pearson
ISBN 10: 0321749006
ISBN 13: 978-0-32174-900-0

Chapter 2 - Nonlinear Functions - 2.4 Exponential Functions - 2.4 Exercises: 16

Answer

x=-5

Work Step by Step

In the exponential functions a given value of x leads to exactly one value of $a^x$, thus we can rewrite the equation: $e^x=\frac{1}{e^5}$ $e^{x}=\frac{1}{e^{-x}}$ So, $x=-5$
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