if A={1,2,3,4}and and b={3,4,5,6,7} find (i)AUB (ii)ANB (iii) A-B (iv) B-A
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Since A={1,2,3,4}
and B={3,4,5,6,7}
(i)AUB={1,2,3,4,5,6,7}
(ii)AΠB={3,4}
(iii)A-B={1,2}
(iv)B-A={5,6,7}
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