Question

*help requested*
*fan and medal awarded to best answer*

Let A = {x, y} and let B = {1, 2, 3}. Find A X B

Answer 1

A cross B means take an ordred pair with an element of A first, then B and form the number of combinations possible...
here , A cross B = {(x,1) (x,2) (x,3) (y,1) (y,2) (y,3) }

Answer 2

You need to take care of the order of pairs, the first element should be from A and the second from B ...