Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 1 - Review Exercises - Page 131: 48


$A\cap C= \{ a \}$

Work Step by Step

$\bf{\text{Solution Outline:}}$ To get the elements of $ A\cap C ,$ get all the common elements of $A$ and $C$. $\bf{\text{Solution Details:}}$ The intersection of $A$ and $C,$ given by $A\cap C$, are all the common elements of $A$ and $C$. With $ A=\{ a,b,c,d \} $ and $ C=\{ a,e,f,g \} $ then \begin{array}{l}\require{cancel} A\cap C= \{ a \} .\end{array}
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