Answer
{2,3,7} ∈ (1,2,3,4,5,6,7}
Work Step by Step
All the elements of 1st set 2,3,7 are present in second set also
Therefore {2,3,7} ∈ (1,2,3,4,5,6,7}
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 2 - Set Theory - 2.2 Subsets - Exercise Set 2.2 - Page 68: 2
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