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Math Help - Finding integral

  1. #1
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    Finding integral

    Dears,

    I can not find thid integral, anyone can help me?



    RegardsFinding integral-untitled.png
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  2. #2
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    Re: Finding integral

    Quote Originally Posted by raed View Post
    Dears,

    I can not find thid integral, anyone can help me?



    RegardsClick image for larger version. 

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    \int_a^t \frac{pe^{-s}}{1 - p(s - t)}ds

    Note that t and p are constants in the integral. So....
    \int_a^t \frac{pe^{-s}}{1 - p(s - t)}ds = p\int_a^t \frac{e^{-s}}{(1 + pt) - (ps )}ds

    To make this a bit more transparent, let 1 + pt = y, where y is of course a constant.
    \int_a^t \frac{pe^{-s}}{1 - p(s - t)}ds = p\int_a^t \frac{e^{-s}}{y - ps }ds


    What can you do with this?

    -Dan
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