set operatoion

• Union of set
• if all elements of A & B are put to gather or form a one set the set form is called union set
• eg
• A={1,2,3}
• B={4,5,6}
• AUB={1,2,3,4,5,6} [A union B]
• inter section of set
• in all elements of A&B which are common to A&B is called intersection
• eg

• A={1,2,3,4}
• B={1,4,5,6}
• A∩B={1,4} A intersection B

• different of set
• the different is" if "A&B"wish is belongs to A and which is not belongs to B"
• eg
• A={2,4,6,8}
• B={1,3,4,7,8}
• A-B={2,6}
• B-A={1,3,7}