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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 June 2014, 1:23 PM
Answered by 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 Expert 4th June 2014, 3:23 PM
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