#### Answer

$1$

#### Work Step by Step

RECALL:
$a^{\frac{1}{2}}=\sqrt{a}$
Use the definition above to obtain:
$=\sqrt{1}
\\=\sqrt{1^2}
\\=1$

Published by
Pearson

ISBN 10:
0-13417-805-X

ISBN 13:
978-0-13417-805-9

$1$

You can help us out by revising, improving and updating this answer.

Update this answerAfter you claim an answer you’ll have **24 hours** to send in a draft. An editor
will review the submission and either publish your submission or provide feedback.