Question

If A = {2,3,4}, B = {3, 4, 5, 6), C = {2, 4, 6, 8) verify that
(i) AU B = (A-B) U B​

Answer 1

Taking LHS

A U B = {2 3 4 5 6}

Now taking RHS

A-B = 2

(A - B) U B = {2 3 4 5 6}

LHS = RHS

hence proved

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