Answer
$3^{-\frac{1}{2}}$
Work Step by Step
RECALL:
(i) $\sqrt{a} = a^{\frac{1}{2}}$
(ii) $\dfrac{1}{a^m} = a^{-m}$
Use rule (i) above to obtain:
$\dfrac{1}{3^{\frac{1}{2}}}$
Use rule (ii) above to obtain:
$=3^{-\frac{1}{2}}$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter P, Prerequisites - Section P.4 - Rational Exponents and Radicals - P.4 Exercises - Page 29: 9
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