Question

If A = {1, 2, 3} and B = {3, 8}, then `(A uu B) xx (A nn B)`is
A. {(3, 1), (3, 2), (3, 3), (3, 8)}
B. {(1, 3), (2, 3), (3, 3), (8, 3)}
C. {(1, 2), (2, 2), (3, 3), (8, 8)}
D. {(8, 3), (8, 2), (8, 1), (8, 8)}

Answer 1

Correct Answer - B
A = {1, 2, 3}
B = {3, 8}
`A uu B = {1, 2, 3, 8}`
`A nn B = {3}`
`(AuuB)xx(AnnB) = {1, 2, 3, 8} xx {3}`
={(1, 3), (2, 3), (3, 3), (8, 3)}