If the nth partial sum of a series Σ Ak is Sn = (n-1)/(n+1) , find Ak . Does Σ Ak converge?(adsbygoogle = window.adsbygoogle || []).push({});

i looked in my math book and cant find how to do this.

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# Nth partial sum of a series Σ Ak is Sn = (n-1)/(n+1)

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