Write the following intervals in set-builder form:
(i) (-3,0) (ii) [6,12] (iii) (6,12] (iv) [-23,5)

Write down all the subsets of the following sets
(i) {a} (ii) { a,b} (iii) {1,2,3} (iv)

write the following intervals in set-builder form:
(i) {: R, -4 < 6}
(ii) {: R, -12 < -10}
(iii) {: R, 0 <7}
(iv) {: R, 3 4}

What universal set(s) would you propose for each of the following:
(i) The set of right triangles. (ii) The set of isosceles triangles.

Given the sets A = {1,3,5}, B = {2,4,6} and C = { 0,2,4,6,8}, Which of
the following may be considered as universal set (s) for all the three sets
A,B and C
(i) {0,1,2,3,4,5,6}
(ii)
(iii) {0,1,2,3,4,5,6,7,8,9,10}
(iv) {1,2,3,4,5,6,7,8}