Answer
a) $2$
b) $-1$
Work Step by Step
a) $|-6|=6$ and $|-4|=4$. Therefore, $||-6|-|-4||=|6-4|=|2|$. Since $2$ is positive, $|2|=2$.
b) $|-1|=1$. Therefore, $\frac{-1}{|-1|}=\frac{-1}{1}=-1$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter P, Prerequisites - Section P.2 - Real Numbers - P.2 Exercises - Page 16: 69
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