Answer
$\sqrt{7}$
Work Step by Step
RECALL:
$\sqrt[n]{a^m} = a^{\frac{m}{n}}.$
Use the rule above to obtain
$7^{\frac{2}{4}}
\\=7^{\frac{1}{2}}.$
Write in radical form using the rule above to obtain
$\sqrt{7}.$
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 - Section P.3 - Radicals and Rational Exponents - Exercise Set - Page 46: 102
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