Precalculus (6th Edition)

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

Chapter R - Review of Basic Concepts - R.7 Radical Expressions - R.7 Exercises: 31

Answer

$A%$

Work Step by Step

RECALL: The product rule $\sqrt{m} \cdot \sqrt{n} = \sqrt{mn}$ is only true when both $m$ and $n$ are positive. Thus, the answer is $A$.
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