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Find the Cardinal Number of the Indicated Set n(A)=20,n(A∪B)=58n ( A ) = 20 , n ( A \cup B ) = 58

Question 202

Multiple Choice

Find the cardinal number of the indicated set. Use the cardinal number formula.
-If n(A) =20,n(A∪B) =58n ( A ) = 20 , n ( A \cup B ) = 58 , and n(A∩B) =16n ( A \cap B ) = 16 , find n(B) n ( B ) .


A) 53
B) 38
C) 55
D) 54

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