Question

write the following intervals in set-builder form. b)[9,11] c)[-4,5) d)(2,8]​

Answer 1

(i) (−3,0)={x:xϵR,−3<x<0}

(ii) [6,12]={x:xϵR,6≤x≤12}

(iii) (6,12]={x:xϵR,6<x≤12}

(iv) [−23,5)={x:xϵR,−23≤x<5}