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 - Page 16: 80


$\sqrt 2 - 1$

Work Step by Step

$|1-\sqrt{2}|=-(1-\sqrt{2})=\sqrt{2}-1$, because $\sqrt{2} > 1$ so the value becomes negative to accommodate.
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