Thinking Mathematically (6th Edition)

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

Chapter 2 - Set Theory - 2.3 Venn Diagrams and Set Operations - Exercise Set 2.3: 90

Answer

$\{\#, \$\}$

Work Step by Step

$B'$ are all elements outside of the circle for $B$. $A\cap B'$ are all elements outside of $B$ that are also inside of $A$. We can see that those elements are $\{\#, \$\}$.
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