Define an arithmetic progression.
An arithmetic progression is a sequence of terms such that the difference between any two consecutive terms of the sequence is always same.
Suppose we have a sequence
So, if these terms are in A.P., then,
And so on…
Here, d is the common difference of the A.P.
Example: 1, 3, 5, 7, 9 … is an A.P. with common difference (d) as 2.
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