Answer
$\ln$ |x| +C
Work Step by Step
Derivative of $\ln$ |x| is $\frac{1}{x}$.
So, the antiderivatives of $\frac{1}{x}$, i.e., $\int \frac{1}{x}dx= \ln |x| +C$ where C is arbitrary constant.
Calculus: Early Transcendentals (2nd Edition)
by Briggs, Bill L.; Cochran, Lyle; Gillett, Bernard
Published by
Pearson
ISBN 10:
0321947347
ISBN 13:
978-0-32194-734-5
Chapter 4 - Applications of the Derivative - 4.9 Antiderivatives - 4.9 Exercises - Page 327: 7
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