Mathematics for IGCSE & O level - Sets (Section 2 - No. 10)
If A = {1, 2, 3} and B = {3, 4, 5}, find (A ∪ B) ∩ {3, 4, 5, 6}.
{3, 4, 5}
{1, 2, 3, 4, 5, 6}
{1, 2, 3, 4, 5}
{ }
Explanation
(A ∪ B) = {1, 2, 3, 4, 5}. Intersection with the second set leaves just {3,4,5}
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