List all the elements of the following sets :
(i) A = {x:x2 <–– 10,x ϵ Z}
(ii) B = { x:x=12n−1,1 <–– n <–– 5}
(iii) {C=x:x is an integer,−12<x<92 }
(iv) D = {x : x is a vowel in the word "EQUATION"}
(v) E = {x : x is a month of a year not having 31 days}
(vi) F = {x : x is a letter of the word "MISSISSIPPI" }
Given the universal set = Universal ~set = {x:x∈ N and x<20} ~find:
(i) A = {x:x=3p;p∈ N }
(ii) B = {y:y=2n+3,n∈ N }
(iii) C = {x:x is divisible by 4}
Prove that the number of subsets of a set containing n distinct elements is 2n for all nϵN.