College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 1 - Equations and Inequalities - Exercise Set 1.2 - Page 121: 112


An identity is an equation that is true for every real number for which both sides are defined. For example, we have $a*1=a$.

Work Step by Step

$a*1=a$ and $a+0=a$ are the identity properties of multiplication and addition, respectively.
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