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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
    n=1


    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

    Dick

    User Avatar
    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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