Question

Write the following as intervals:
(i) {\(x: x ∈ R, -4 < x ≤ 6\)}
(ii) {\(x: x ∈ R, -12 < x < -10\)}
(iii) {\(x: x ∈ R, 0 ≤ x < 7\)}
(iv) {\(x: x ∈ R, 3 ≤ x ≤ 4\)}

Answer 1

(i) {\(x: x ∈ R, -4 < x ≤ 6\)} = [-4, 6]

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(ii) {\(x: x ∈ R, -12 < x < -10\)} = (-12, -10)

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(iii) {\(x: x ∈ R, 0 ≤ x < 7\)} = [0, 7]

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(iv) {\(x:x ∈ R, 3 ≤ x ≤ 4\)} = [3, 4]