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the sequence of numbers in which each differs from the preeceding one by a constant quantity..
ex. 1,2,3,4etc.
ex. 4,6,8, 10,etc.
1 5 1
By Arithmetic progression (A.P.)  of m terms , we mean a sequence .Examples

a , a+d, a+2d......................a+(m-1)d

The real no. a is called first term of A.P. , and the real no. d is called common diffrence.
0 0 0
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