Answer
n(A∩B) = 1
Work Step by Step
n(A∩B)
The set A∩B represents all the common elements of set A and set B.
From the given Venn Diagram the regions of A∩B is II.
The elements of A∩B are △.
Therefore cardinal number of A∩B is 1.
n(A∩B) = 1
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 - 2.3 Venn Diagrams and Set Operations - Exercise Set 2.3 - Page 81: 84
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