Answer
$-12\notin\{3,5,12,14\}$
Work Step by Step
Although 12 is an element of the set, -12 is not a number in the set. Therefore, $-12\notin\{3,5,12,14\}$.
College Algebra (11th Edition)
by Lial, Margaret L.; Hornsby John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671791
ISBN 13:
978-0-32167-179-0
Chapter R - Section R.1 - Sets - R.1 Exercises - Page 6: 20
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