Mathematics, 23.05.2020 15:57 jmwmarshall

Will Mark Brainliest. The formula uppercase S = StartFraction n (a Subscript 1 Baseline plus a Subscript n Baseline) Over 2 EndFraction gives the partial sum of an arithmetic sequence. What is the formula solved for an?

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Will Mark Brainliest. The formula uppercase S = StartFraction n (a Subscript 1 Baseline plus a Subsc...

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