College Algebra 7th Edition

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: 69

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, $\frac{-1}{|-1|}=\frac{-1}{1}=-1$
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