Chapter 2: Operation of Sets
Return to Table of Content Mathematics for Biotechnology and Data Science Chapter 1: Set Theory Chapter 2: Operation of Sets Chapter 3: Application of Set Theory Chapter 4: Venn Diagram Chapter 5: Relation Chapter 6: MAPPING OR FUNCTIONS Chapter 8: Inverse of a Function Chapter 2: Operation of Sets 2.1. Union of Sets : Let A and B be two sets. The union of A and B is the set of all those elements which belong either to A or to B or to both A and B. We shall use notation (reads as “A union B”) to denote the union of A and B. Thus, . Clearly, . and, . It is evident form the definition that Example 1: If A = {1, 2, 3} and B = {1, 3, 5, 7}, then . Example 2: If and then 2.2. Intersection of Sets : Let A and B be two sets. The intersection of A and B is the set of all those elements that belong to both A and B. We shall use notation (re...