Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 4 - Review - Exercises: 20


$x\in R-${0}

Work Step by Step

Argument of a natural logarithm must be greater than 0. In this case the argument is in modulus which makes every negative value positive. The only value to which the argument cannot be equal to is 0 $\rightarrow x\ne0$ so the domain is all real numbers except 0.
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