What are the types of Subsets of real number?

What are the types of Infinite subsets as subset of real number - in closed open and semi open interval

What are the elements of a subset?

What are the subsets of {O/,{O/}} .

Natural number are subsets of integers are subsets of real number i.e. N subsetZ, Z subsetR, N subsetR

What are the subsets of the null set O/ ? Does it possess a proper subset?

what is Subset of A

Mark the following subsets of set R of real numbers on the number line and write them intervals: {x:x in R, x ge 3}

(i) Let A={1,2,3,4} and B={1,2,3,4,5} . Since every member of A is also a member of B, A subset B (ii) The set Q of rational numbers is a subset of set R of real number and we write as Q subset R

(i) Let A={1,2,3,4} and B={1,2,3,4,5} . Since every member of A is also a member of B, A subset B (ii) The set Q of rational numbers is a subset of set R of real number and we write as Q subset R