Precalculus (6th Edition)

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: 43

Answer

false

Work Step by Step

RECALL: (1) $\in$ means that the number/expression is an element of the set. (2) $\not \in$ means that the number/expression is NOT an element of the set. $9$ is an element of the set on the right. Thus, the given statement is false.
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