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Math Help - Calculus question

  1. #1
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    Calculus question

    Hi,

    I am an economist so I know some maths but a lot of it is way beyond me. I joined because I trying to find an answer to a simple question in calculus, which I can't seem to find anywhere.

    The question is: how do you differentiate the integral of a composite function? Specifically, if F(k(j))= \int \! g(k(j)) \, \mathrm{d}j what is \frac{dF}{dk}?

    The closest thing to an answer I could find was Leinbniz's rule, which suggested the answer should be \int \! \frac{dg}{dk} \, \mathrm{d}j, but the answer I should get (according to someone else's notes) is just \frac{dg}{dk} , as if the integral isn't there.

    Hope someone can help. Thanks.
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  2. #2
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    Re: Calculus question

    please post calculus questions in the calculus forum
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  3. #3
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    Re: Calculus question

    Apologies. I have re-posted in the calculus forum.
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