Thinking Mathematically (6th Edition)

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

Chapter 2 - Set Theory - Chapter Summary, Review, and Test - Review Exercises: 11

Answer

n(B)=15

Work Step by Step

B={18,19,20,....,31,32} In the given sets there are 15 elements. So the cardinal number is 15.
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