Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 7 - Section 7.5 - Rationalizing Denominators and Numerators of Radical Expressions - Exercise Set: 3

Answer

$\frac{\sqrt 5}{5}$

Work Step by Step

$\sqrt \frac{1}{5}=\frac{\sqrt 1}{\sqrt 5}=\frac{\sqrt 1 \times \sqrt5}{\sqrt 5 \times \sqrt5}=\frac{\sqrt (1\times5)}{5}=\frac{\sqrt 5}{5}$
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