Union Of Two Sets Venn Diagram
Let s say that our universe contains the numbers 1 2 3 and 4 so u 1 2 3 4 let a be the set containing the numbers 1 and 2.
Union of two sets venn diagram. This is written as a b. The union of sets a and b is the set of elements which are in a or b or both. Let counting numbers p multiples of 3 less than 20 and q even numbers less than 20. A union is often thought of as a marriage.
We can show that in a venn diagram. On a venn diagram the intersection is the part where the circles representing the sets overlap. A venn diagram is clever because it shows lots of information. Let us consider a universal set u such that a and b are the subsets of this universal set.
Union of 2 sets. So the number of students enrolled in at least one of the subjects is 100. Complement of a set. In a town 85 of the people speak tamil 40 speak english and 20 speak hindi.
Venn diagram of union of sets. Intersection of two sets. The following examples should help you understand the notation terminology and concepts relating venn diagrams and set notation. The union of two sets a and b is defined as the set of all the elements which lie in set a and set b or both the elements in a and b altogether.
We use and for intersection and or for union let s look at some more examples of the union of two sets. In other words we combine the elements of the two sets. Union of sets and complement learn the union of sets and the complement of the union of sets how to shade the union intersection and complement of two sets illustrate union and intersection of sets with venn diagrams with video lessons examples and step by step solutions. It s time to have a serious talk about venn diagrams and we re not talking about the venn diagrams from.
From the above venn diagram number of students enrolled in at least one of the subjects. You can also have the intersection of more than two sets. The intersection shows what items are shared between categories. Shade elements which are in p or in q or in both.
A complete venn diagram represents the union of two sets. For sets a b and c the intersection is a. The complement is whatever is not represented in a set. The union of the set is denoted by the symbol.
Do you see that alex casey drew and hunter are in the soccer set. 40 15 15 15 5 10 0 100. On a venn diagram the union of sets a and b is every element within the.