Write the following sets in interval form. (i) {x : x ∈ R, a < x < – InterviewSolution

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Write the following sets in interval form. (i) {x : x ∈ R, a < x < b} (ii) {x : x ∈ R, 3 < x ≤ 5} (iii) {x : x ∈ R, 0 ≤ x < 8} (iv) {x : x ∈ R, -1 ≤ x ≤ 5}

Answer»

(i) {x : x ∈ R, a < x < b} = (a, b)

(ii) {x : x ∈ R, 3 < x ≤ 5} = [3, 5]

(iii) {x : x ∈ R, 0 ≤ x < 8}= [0, 8]

(iv) {x : x ∈ R, -1 ≤ x ≤ 5} = [-1, 5]

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