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Question
If P = {x : x ∈ W and 4 ≤ x ≤ 8}, and Q = {x : x ∈ N and x < 6}. Find: P ∪ Q and P ∩ Q.
Solution
P = (4, 5, 6, 7, 8)
Q = (1, 2, 3, 4, 5)
P ∪ Q = (1, 2, 3, 4, 5, 6, 7, 8)
P ∩ Q = (4, 5)
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