Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 10 - Section 10.5 - Integrated Review - Radicals and Rational Exponents: 38


$\frac{7}{\sqrt {21}}$

Work Step by Step

$\sqrt \frac{7}{3}$ =$\frac{\sqrt 7}{\sqrt 3}$ =$\frac{\sqrt 7}{\sqrt 3}\times\frac{\sqrt 7}{\sqrt 7}$ =$\frac{\sqrt 7\times\sqrt 7}{\sqrt 3\times\sqrt 7}$ =$\frac{7}{\sqrt {3\times7}}$ =$\frac{7}{\sqrt {21}}$
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