Question

Write the following intervals in set-builder form.

(i) (-6,0) (ii) [3,21) (iii) [2,21] (iv) (-20,5]​

Answer 1

1) {x:x€R , 3<x<0}

2) {x:x€R ,6≤x≤12}

3){x:x€R ,6<x≤12}

4)){x:x€R ,-23≤x<5}

God bless you