College Algebra 7th Edition

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: 9

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: $=3^{-\frac{1}{2}}$
Update this answer!

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

Update this answer

After 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.