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Math Help - Ratio and Alternating convergence tests inconclusive?

  1. #1
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    Ratio and Alternating convergence tests inconclusive?

    Hi,

    I'm testing this series for convergence:

    n=1 to inf sigma: [(-1)^n][(n+1)/n]

    And I'm getting the number 1 for both ratio and alternating series tests. Is there another test I should look for or should I try again with one of these? Thanks
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  2. #2
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    Quote Originally Posted by DannyMath View Post
    I'm testing this series for convergence:
    n=1 to inf sigma: [(-1)^n][(n+1)/n]
    If \displaystyle\lim _{n \to \infty } \left| {a_n } \right| \ne 0 then the series \sum a_n diverges.
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