Answer
false
Work Step by Step
$A \subseteq C$ if all elements of set A are also elements of set C.
Note that some elements of A (e.g., 6) are not elements of C.
This means that A is NOT a subset of C.
Therefore, the given statement is false
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 8: 62
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