# Arithmetic Progressions(A.P)

Arithmetic Progressions is a sequence of number thats arrange in specific order according to some rules.
numbers occurring in a sequence are called its terms.

mainly terms of sequence denoted by a1,a2,a3,a4,...etc.
where a1 is a first term of sequence ,a2 is a second term of sequence and an is nth term of sequence .

in arithmetic progression
difference between 1st term and 2nd term are same as different between 2nd term and 3rd term or nth term and (n-1)th term.
these different called as a common difference of arithmetic progressions.

For example

2,5,8,11....

in this sequence

2 is 1st term

5 is 2nd term

and so on..