if n(A) = 20, n(B) = 40, and n(A U B) = 30, find n(A n B)
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if n(A) = 20, n(B) = 40, and n(A U B) = 30, find n(A n B)
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Answer:
12
Step-by-step explanation:
n(A)=22,n(B) =32 and n(AuB)=40 then
n(AnB = n(A)+n(B) -n(AuB)
n(AnB) =12