1.

If n(A) = 7, n(B) = 11), then it. (A intersectionB)-5n (A×B)n (BXA)a​

Answer»

Given

n(A) = 7, n(B) = 11

n (A×B)n (B×A)

n(7×11)n(11×7)

n(77)n(77)

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