Let A and B be two sets such that A  B consists of 6 elements. If three elements of A  B are (x, 6), (y, 7), (z, 7), then find B  A.

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

If three elements of A  B are (x, 6), (y, 7), (z, 7) then it follows that x, y, z are elements of A and 6, 7 are elements of B. Again it is given that A  B consists of 6 elements. So, A = {x, y, z} and B = {6,7}

Hence B  A = {(6, x), (6, y), (6, z), (7, x), (7, y), (7, z)}

Answered by  | 4th Jun, 2014, 03:23: PM