Question

Let A = {x. y}

B = {1, 2, 3}

Find A X B and B X B

Answer 1

Are the following:

Explanation:

AXB are all the possible pairs (a,b) where a is in A and b is in B. Then

AXB = {(x,1), (x,2), (x,3), (y,1), (y,2), (y,3)}.

Now, BXB are all the possible pairs (a,b) where a and b are in B. Then

BXB = {(1,1) (1,2), (1,3), (2,2), (2,1), (2,3), (3,1), (3,2), (3,3)}.