A) 3
B) 6
C) 9
D) 18
Correct Answer: B
Solution :
n(A È B) = n + n - n(A Ç B) = \[3+6-n(A\cap B)\] Since, maximum number of elements in \[A\cap B=3\] \[\therefore \] Minimum number of elements in \[A\cup B=9-3=6\].You need to login to perform this action.
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