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}

(i) Let us assume that A = {x: x ∈ R, – 4 < x ≤ 6}


∴ Set A can be written in the form of intervals as follows:


= (-4, 6]


(ii) Let us assume that A = {x : x ∈ R, – 12 < x < –10}


∴ Set A can be written in the form of intervals as follows:


= (-12, -10)


(iii) Let us assume that A = {x: x ∈ R, 0 ≤ x < 7}


∴ Set A can be written in the form of intervals as follows:


= [0, 7)


(iv) Let us assume that A = {x : x ∈ R, 3 ≤ x ≤ 4}


∴ Set A can be written in the form of intervals as follows:


= [3, 4]


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