Answer
$\{0.69,1.10 \}$
Work Step by Step
Step 1. Graph $f(x)=e^x+6e^{-x}-5$ as shown in the figure.
Step 2. Find the x-intercept at $x=0.69,1.10$, thus the solution set is $\{0.69,1.10 \}$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 4 - Inverse, Exponential, and Logarithmic Functions - 4.5 Exponential and Logarithmic Equations - 4.5 Exercises - Page 472: 122
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