Answer
$r\sqrt r$
Work Step by Step
$\sqrt {r^3}=\sqrt {r^2\times r}=\sqrt {r^2}\times\sqrt r=r\sqrt r$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Review Exercises - Page 142: 44
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