Calculus: Early Transcendentals (2nd Edition)

Published by Pearson
ISBN 10: 0321947347
ISBN 13: 978-0-32194-734-5

Chapter 1 - Functions - 1.3 Inverse, Exponential, and Logarithmic Functions - 1.3 Exercises: 53

Answer

$x = \frac{\ln21}{\ln7}$

Work Step by Step

$7^{x} = 21$ $\ln7^{x} = \ln21$ $x\ln7 = \ln21$ $x = \frac{\ln21}{\ln7}$
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