## 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)

1. anonymous

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2. anonymous

@Nnesha

3. anonymous

A 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?