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Math Help - Differentiation question

  1. #1
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    Differentiation question

    Hi folks, I need help to solve this question in my study paper. Hope to hear from you all soon!

    A company’s output rate Q at time t is given by a function which changes at t= 10 as follows:


    Differentiation question-screenshot_2012-11-17-18-39-18.png

    Find the rate of change of output rate Q with respect to t when (i) t = 5, and (ii) t = 15.
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  2. #2
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    Re: Differentiation question

    y = A(1 - e^{kt})

    \frac{dy}{dt} = A(-ke^{kt})
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