Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter R - Review of Basic Concepts - Chapter R Test Prep - Review Exercises: 19

Answer

$\color{blue}{(C \cap D) \cup B = \left\{1, 2, 3, 4, 6, 8\right\}}$

Work Step by Step

RECALL: (1) $\cup$ represents the union of sets, which is the set that contains the combined elements of the sets involved. (2) $\cap$ represents the intersection of sets, which is the set that contains the elements common to the sets involved. Thus, $C\cap D=\left\{1, 3\right\}$ Combining the elements of the intersection above and the set $B$ gives: $\color{blue}{(C \cap D) \cup B = \left\{1, 2, 3, 4, 6, 8\right\}}$
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