Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 2 - Set Theory - 2.1 Basic Set Concepts - Exercise Set 2.1 - Page 58: 16

Answer

A = April, June, September, November.

Work Step by Step

Let A be the set of all months that have exactly 30 days. A = April, June, September, November.
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