Answer
{$15;16;17;18;21;50$}
Work Step by Step
The union of two sets contains all the elements that are in set A, set B or both sets.
Here:
{$16;18;21;50$} $\cup$ {$15;16;17;18$}={$15;16;17;18;21;50$}
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter R - Review of Basic Concepts - R.1 Sets - R.1 Exercises - Page 7: 10
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