Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 1 - Equations and Inequalities - 1.3 Complex Numbers - 1.3 Exercises: 40

Answer

$3$

Work Step by Step

$\frac{1}{\sqrt 8} \times \sqrt {72}=\frac{\sqrt {72}}{\sqrt {8}} = \sqrt {\frac{72}{8}} = \sqrt {9} = 3$
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