22APR CARDINAL NUMBER OF SETS Some important results derived from Venn diagrams are as follows: A, B and C are three sets. A and B are disjoint sets. Post Author: E-Maths

24APR OPERATIONS ON SETS (1) Union of Sets: The union of two sets A and B is the set of all the elements which are either in A or in B or in both A and B. It is...

22APR LAWS OF SET OPERATIONS (1) Idempotent laws : $latex \text{A}\cap \text{A}=\text{A}$ $latex \text{A}\cup \text{A}=\text{A}$ (2) Identity laws: $latex...

21APR VENN DIAGRAM The pictorial representation of sets is called Venn diagram. The universal set is represented by a rectangular region and its subsets by...

21APR INTERVALS (1) Closed Interval: Let a and b are two given real numbers such that $latex \text{a}\,\text{}\,\text{b}$ , then $latex \left=\left\{...

20APR SUBSETS SUBSET: A set P is said to be a subset of a set Q if each element of P is also an element of Q. If P is subset of Q, we write $latex...