Mathematics · Set Theory
Given that the universal set ξ = {x : 1 ≤ x ≤ 12 and x is an integer}, and the sets P = {x : x is a prime number}, Q = {x : x is a multiple of 4}, and R = {2, 3, 8, 9}. The elements of the set (Q ∪ R)' ∩ P are:
- 1{1, 5, 7, 11}
- 2{5, 7, 11}✓
- 3{2, 3, 5}
- 4{2, 3}
Correct answer
{5, 7, 11}
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