Answer
$\left(1^3\right)^7=1^{21}$
$1^{21}=1$
Work Step by Step
$\left(a^m\right)^n = a^{mn}$
Thus,
$\left(1^3\right)^7
\\= 1^{3\cdot 7}
\\=1^{21}
\\=1$
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 5 - Number Theory and the Real Number System - 5.6 Exponents and Scientific Notation - Exercise Set 5.6 - Page 319: 8
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