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Limits and Sequences

  • Thread starter Firepanda
  • Start date
  • #1
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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:

Answers and Replies

  • #2
206
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It converges to 0. The source you got -1/2 from is mistaken.
 
Last edited:
  • #3
rock.freak667
Homework Helper
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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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