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Question

A=x;x=2n,nϵNandn<10 and Bx;x=3n,nϵNandn<10 the find ABCB,AB AB and BA

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Solution

A=x;x=2nnNn<10 B=x;x=3nnNn<10
A={2,4,6,8,10,12,14,16,18}
B={3,6,9,12,15,18,21,24,27}
AB={6,12,18}
AB={2,4,8,10,14,16}
BA={3,9,15,21,24,27}

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