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20 votes
20 votes
Formula for the sum of an arithmetic progression​

User El Tea
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1 Answer

11 votes
11 votes

Answer:

I think it is S = n⁄2 (a + L)

Explanation:

“S” is the sum of the arithmetic sequence, “a” as the first term, “d” the common difference between the terms, “n” is the total number of terms in the sequence and.

User Arcreigh
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