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Limits and Sequences

  1. Jan 16, 2008 #1
    http://img215.imageshack.us/img215/8624/limitscz6.jpg [Broken]

    That's the question and the answer.

    I don't get why it converges to -1/2 and how you can tell just by looking. Maybe I'm not understanding well enough but I understand how to find the limit, just I thought the limit to infinity showed that 0 was what it converged to, not -1/2.

    Any help? Thanks.
    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Jan 16, 2008 #2
    It converges to 0. The source you got -1/2 from is mistaken.
    Last edited: Jan 16, 2008
  4. Jan 16, 2008 #3


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    According to what i see if the graph were drawn, as n-->+infinity, the curve approaches a horizontal asymptote which is the n-axis, meaning that it converges to zero. And the method they used is correct but how they got -1/2, I have no idea.
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