Answer
$$
\int \frac{7 d x}{x} =7 \ln |x|+C
$$
Work Step by Step
Recall that $\int \frac{1}{x}dx=\ln |x|+C$
Thus, we have:
$$
\int \frac{7 d x}{x}=7\int \frac{ d x}{x}=7 \ln |x|+C
$$
Calculus (3rd Edition)
by Rogawski, Jon; Adams, Colin
Published by
W. H. Freeman
ISBN 10:
1464125260
ISBN 13:
978-1-46412-526-3
Chapter 7 - Exponential Functions - 7.3 Logarithms and Their Derivatives - Exercises - Page 343: 85
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