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Homework Help: Proof of Limit

  1. Jun 26, 2016 #1
    1. The problem statement, all variables and given/known data
    I have been working on the problem below and I am stuck. I am stuck primarily because of the part where is says x=0. If x-0, it should cancel everything out. The derivative of 0 is 0 so will cancel everything out I think, so I am not sure if that is the reasoning and the proof behind it.

    2. Relevant equations

    3. The attempt at a solution
    I thought I should start this way, but I am not 100% sure.


    Attached Files:

  2. jcsd
  3. Jun 26, 2016 #2


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    It's a good idea to have the problem statement visible in the OP.

  4. Jul 5, 2016 #3

    James R

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    L'Hopital's rule?
  5. Jul 6, 2016 #4
    Not necessary with the hint in the OP, the definition of a derivative is enough.
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