Mathematics, 01.09.2020 21:01, sarah5707
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?
Answers: 3
from both sides
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The formula uppercase S = StartFraction n (a Subscript 1 Baseline plus a Subscript n Baseline) Over...
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