Let A = {1, 2, 3, 4}, B = {5, 7, 9}. Det...

Let `A = {1, 2, 3, 4}, B = {5, 7, 9}`. Determine :
(i) `A xx B` and represent it graphically.
(ii) `B xx A` and represent it graphically.
(iii) Is `A xx B = B xx A` ?
(iv) Is n `(A xx B) = n(B xx A)` ?

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