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Arithmetic Progression

Arithmetic Progression : Common Difference nth Term



An Arithmetic progression is a list of numbers, whose each term is obtained by adding a fixed number to its previous term (except it's first term). It is usually denoted as AP

example (a): 2, 4, 6, 8, 10, 12, 14, 16

Before you understand AP further, lets understand: What are terms of Arithmetic Progression ?

Terms of arithmetic progression refers to each number given in itís list. To understand it better consider the above example (a):

Number 2 is itís first term
Number 4 is its second term
Number 6 is itís third term
and so on........

For further understanding, suppose:

a1 is it's first term of arithmetic progression
a2 is it's second term of arithmetic progression
a3 is it's third term of arithmetic progression
an is it's nth term of arithmetic progression then, the arithmetic progression is:
a1 a2 a3 ... an

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