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anonymous
 one year ago
how do i start to solve this? will give medals!
Find the first 4 partial sums of the sequence, then find the value for S(sub n):
a(sub n) = 2/(3^n)
anonymous
 one year ago
how do i start to solve this? will give medals! Find the first 4 partial sums of the sequence, then find the value for S(sub n): a(sub n) = 2/(3^n)

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1443541626539:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0A partial sum \(S_k\) for a sequence \(a_n\) is given by \[\sum_{n=1}^ka_n=a_1+a_2+a_3+\cdots+a_k\] We call \(S_k\) the \(k\)th partial sum for the sequence \(a_n\). The first partial sum, for example, is simply \[\sum_{n=1}^1a_n=a_1=\frac{2}{3^1}=\frac{2}{3}\] Make sense?
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