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seen Feb 2 '13 at 0:20

Apr
14
comment Finding the first term of a geometric series by the sum and $n$
actually by the link Raskolnikov gave its $S = a \cdot \frac{r^{n+1}-1}{r-1}$ because my series terminates in $n$ not $n-1$
Apr
14
asked Finding the first term of a geometric series by the sum and $n$
Apr
14
awarded  Scholar
Apr
14
awarded  Supporter
Apr
14
accepted Balancing merges of timed event
Apr
13
asked Balancing merges of timed event