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For two sets A and B the three elements ...

For two sets A and B the three elements of `Axx B` are `(a,x), (b,y), (c,x)`, find `BxxA`

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The correct Answer is:
(i) `B xx A`
`={(x,a), (x,b), (x,c), (y,a), (y,b), (y,c)}`
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