Question

Let a={-1,0,1,2}and b={-3,0,2,3} and c={0,1,3,4} be three sets then then find (AUB) UC

Answer 1

AUB means all elements of A and B that is [-3,-1,0,1,2,3]

(AUB)UC means all elements of AUB and C that is [-3,-1,0,1,2,3,4]

therefore (AUB)UC = [-3,-1,0,1,2,3,4]

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