Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Appendix A - Review - A.7 nth Roots; Rational Exponents - A.7 Assess Your Understanding - Page A60: 1

Answer

$9; \ \ -9$

Work Step by Step

We have $$(-3)^2=(-3)(-3)=9,\\ \quad -3^2=-(3\cdot3)=-9$$
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