Answer
For integers $n\ge 2$, $\sqrt[n]{a^n} = a$.
Work Step by Step
RECALL:
The nth root of $x^n$ where $x$ is positive real number $x$.
Thus, for integers $n\ge2$, $\sqrt[n]{a^n} = a$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter R - Review of Basic Concepts - R.7 Radical Expressions - R.7 Exercises - Page 74: 32
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