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Let A\ a n d\ B be two sets such that n(...

Let `A\ a n d\ B` be two sets such that `n(A)=3\ a n d\ n(B)=2.` If `(x , 1),\ (y ,2),\ (z ,1)` are in `AxxB ,` write `A\ a n d\ Bdot`

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Given
`n(A)=3\ a n d\ n(B)=2.`
`(x , 1),\ (y ,2),\ (z ,1)` are in `AxxB ,`
so,
`A={x,y,z}`
`B={1,2}`
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