Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 1 - Introduction to Algebraic Expressions - 1.7 Multiplication and Division of Real Numbers - 1.7 Exercise Set - Page 59: 136


$x=1$ or $x=-1$

Work Step by Step

The real number is $x$ and its reciprocal is $\frac{1}{x}$ The equation is: $x=\frac{1}{x}$ $x^2=1$ by multiplying both sides by $x$, where $x\ne 0$ $x=1$ or $x=-1$
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