#### Answer

$i\sqrt{15}$

#### Work Step by Step

The -1 inside the radical is changed to an $i$ outside the radical.
$\sqrt{-15}=i\sqrt{15}$

Published by
Pearson

ISBN 10:
0321671791

ISBN 13:
978-0-32167-179-0

$i\sqrt{15}$

The -1 inside the radical is changed to an $i$ outside the radical.
$\sqrt{-15}=i\sqrt{15}$

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