Question

let U={1 2 3 4 5 6 7 8 9},A={1 2 3 4} and B={3 4 5 6},find (A-B)'

Answer 1

Step-by-step explanation:

(A-B)' = {1,2,3,4,5,6}

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Answer 2

Answer:

(A-B)' = {1, 2,3,4,7,8,9}

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