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: 90

Answer

a. yes b.yes

Work Step by Step

$A = \{x|x ∈ N$ and $200 \leq x \leq 206\}$ $B = \{x|x ∈ N$ and $199 \lt x \lt 207\}$ Expressed using the roster method: $A = \{200, 201, 202, 203, 204, 205, 206\}$ $B = \{200, 201, 202, 203, 204, 205, 206\}$ a. Those sets are equivalent as they have the same number of elements. b. Those sets are equal as their elements are exactly the same.
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