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Divergence test problem

  1. Aug 3, 2012 #1
  2. jcsd
  3. Aug 3, 2012 #2
    What's wrong? Wolfram says it is convergent too.
     
  4. Aug 3, 2012 #3
    Sorry, i just want to check the work. I am having some trouble convincing myself that it is correct. I keep getting that the ratio test is inconclusive (=1) so i need to see someone else work the problem.
     
  5. Aug 3, 2012 #4
    I do not know about the ratio test but the series surely converges by the Cauchy root test.
     
  6. Aug 3, 2012 #5
    I've got it, but it's messy with the ratio test unless you imply some limits. Root test FTW!
     
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