Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 5 - Number Theory and the Real Number System - 5.4 The Irrational Numbers - Exercise Set 5.4: 36

Answer

$2\sqrt5$

Work Step by Step

Use the quotient rule $\dfrac{\sqrt{a}}{\sqrt{b}}=\sqrt{\dfrac{a}{b}}$, where $a$ and $b$ are nonnegative numbers and $b\ne 0$ to obtain: $=\sqrt{\dfrac{60}{3}} \\=\sqrt{20} \\=\sqrt{4(5)} \\=2\sqrt5$
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