Calculus 8th Edition

Published by Cengage
ISBN 10: 1285740629
ISBN 13: 978-1-28574-062-1

Chapter 6 - Inverse Functions - 6.3* The Natural Exponential Function - 6.3* Exercises - Page 452: 10



Work Step by Step

Given: $10(1+e^{-x})^{-1}=3$ Divide both sides by 10. $(1+e^{-x})^{-1}=\frac{3}{10}$ $\frac{1}{(1+e^{-x})}=\frac{10}{3}$ Hence, $x=ln3-ln7$
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