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Use definition as a derivative (as a limit) problem

  1. Oct 25, 2011 #1
    Limit → pi/3 [itex]\frac{2cosθ-1}{3θ-pi}[/itex]

    I plugged in pi/3 and I got 0/0. I'm not sure that's right way.

    Would I need to change the derivative of cosθ to -sinθ? Or just plug pi/3 ?
    Last edited: Oct 25, 2011
  2. jcsd
  3. Oct 25, 2011 #2


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    Could you state the problem exactly as it's given? I'm not seeing how this is related to the definition of the derivative.
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