Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 3 - Solving Inequalities - 3-8 Unions and Intersections of Sets - Practice and Problem-Solving Exercises - Page 219: 39


$A\cap B=A$

Work Step by Step

The intersection of A and B contains the elements that are members of both A and B. If A is a subset of B, then B contains all the elements that are in A. This means the intersection of A and B will contain all the elements that are in A.
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