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Which of the following are examples of the null set? E = {x : x ϵ W, x + 3 ≤ 3}. |
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Answer» Whole numbers = 0, 1, 2, 3, … If we take x = 0 then x + 3 = 0 + 3 = 3 If we take x = 1 then x + 3 = 1 + 3 = 4 > 3 So, 0 is the element of set E because it satisfies the given equation. ∴ It is not a null set. |
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