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Two sets A and B have 4 common elements....

Two sets A and B have 4 common elements. If n(A) = 6 and n(B) = 7, then find the values of `n(AxxB) and n[(AxxB) cap(BxxA)]`.

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The correct Answer is:
`n(AxxB)=42,n[(AxxB)cap(BxxA)]=16`
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