If A and B are any two finite sets, then what can be the maximum number of elements in `A nnB`?

If A and B be two sets containing 6 and 3 elements respectively, what can be the minimum number of elements in AuuB ? Also, find the maximum number of elements in AuuB .

Statement-1 If Sets A and B have three and six elements respectively, then the minimum number of elements in A uu B is 6. Statement-2 AnnB=3 .

If A and B are any two sets, prove that : A-B =A nn B^(c) .

If A, B and C are three finite sets, then what is , [(A uu B) nn C]' equal to?

If A and B are two sets such that A sub B , then what is A uu B ?

If A and B are any two sets, prove that P(A) = P(B) implies A = B.