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Homework Help: Abs convergence

  1. May 1, 2010 #1
    [tex]
    \sum_{n=1}^{\infty}(-1)^n\frac{n}{5+n}
    [/tex]
    alt series tests fails, ratio and root fail is it safe to do a comp test with bn=1 for c=1>0 for abs convergence
     
    Last edited: May 1, 2010
  2. jcsd
  3. May 1, 2010 #2
    the answer here is no since the limit of an does not aproach 0
     
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