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.1 Algebra Essentials - A.1 Assess Your Understanding - Page A12: 96

Answer

$-\displaystyle \frac{1}{4x^{2}}$

Work Step by Step

... Apply rule $\displaystyle \quad a^{-n}=\frac{1}{a^{n}}$ $(-4x^{2})^{-1}=\displaystyle \frac{1}{\left(-4x^{2}\right)^1}=-\frac{1}{4x^{2}}$
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