MDU BBA NOTES

SEMESTER-1

Business Mathematics

Venn Diagrams

Most of the relationships between sets can be represented by means of diagrams which are known as Venn diagrams. Venn diagrams are named after the English logician, John Venn (1834-1883). These diagrams consist of rectangles and closed curves usually circles. The universal set is represented usually by a rectangle and its subsets by circles.

Illustration 1

In Fig 1.2, U = {1,2,3, …, 10} is the universal set of which A = {2,4,6,8,10} is a subset.

Illustration 2

In Fig 1.3, U = {1,2,3, …, 10} is the
universal set of which A = {2,4,6,8,10} and B = {4, 6} are subsets, and also B ⊂ A.

The reader will see extensive use of diagrams when we discuss the union, intersection, and difference of sets.

For more Diagrams in detail

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