# CBSE Class 11-science Answered

**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 | 04 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 | 04 Jun, 2014, 03:23: PM

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