Mathematics

Power set – Sets

Given set A, the collection of all subsets of A is called the power set of A.It is usually denoted by P(A) or 2A. Example: If A = {1, 2, 3} then P(A) = {∅, {1}, {2}, {3}, {1, 2}, {2, 3}, {3, 1}, {1, 2, 3}}

Mathematics

Equality of sets – Sets

Let A be the set of all even natural numbers less than 10 and B be the set of natural numbers less than 10 which are not odd. Then A = {2, 4, 6, 8} and B = {2, 4, 6, 8}. Note that every element of B is also an element of A and… Continue reading Equality of sets – Sets

Mathematics

Roster method of Sets- tabular method of Sets

For the three sets namely the set A of all odd numbers less than 10, the set B of all states of South India  and the set C of all  even natural numbers less than  or equal to 10, list out all their elements. The list of elements of A are 1, 3, 5, 7,… Continue reading Roster method of Sets- tabular method of Sets