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Nth Partial sum

  1. Apr 14, 2013 #1
    1. The problem statement, all variables and given/known data

    The nth partial sum of the series

    Ʃ an

    is given Sn = 5-1/n

    Determine weather the series is convergent or divergent

    3. The attempt at a solution

    Looked in my book on how to do this one.
    couldn't find anything on it.

    What i was thinking was find the sum of all n's and finding a pattern and use that as an
    however it didnt work, so im stuck.
  2. jcsd
  3. Apr 14, 2013 #2


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    Science Advisor
    Homework Helper

    The sum of the series is DEFINED to be the limit of the partial sums. There's not much else to know. What is it?
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