Question

10. Given U = {1, 2, 3, 4, ..., 20) is a universal set. Let A, B and C be its three subsets defined as:
A = {x:x is a prime number}; B = {x: x is an odd number}; C = {x : x is a composite number)
Write A' B' and C' in Roster-listed form.​

Answer 1

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Answer 2

A = { 2,3,5,7,11,13,17,19}

B= { 1,3,5,7,9,11,13,15,17,19}

C= { 1,4,6,8,9,10,12,14,15,16,18,20}

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