3. CHAPTER # 01
SET: (CLASS OR AGREEMENT)
The concept of a set is fundamental in all branches of mathematics.
The well-defined collection of distinct objects.
Objects are called elements or members or points of a set.
Introduced by George cantor in 19 century.(to investigate the theory of infinite
series)
Capital letters of English alphabet are used to denote sets.
Small letters of English alphabet are used as element or member of a set.
The symbol
All members are closed n braces (Curly bracket { } ).
All members are separated by Comma ,.
1. What is set?
A set is a well defined collection of distinct objects which are called elements.
The sets are usually denoted by capital letters A, B ,CX, Y, Z.
Elements are denoted by a, b, c x, y, z.
1.1 Some Important Set of Number
Following notation will be used for sets of numbers :
Set of Natural numbers : N= {1,2,3,..}
Set of Whole numbers : W= {0,1,2,3,}
Set of Integer :