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Math Help - limits

  1. #1
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    limits

    how do you find-

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  2. #2
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    pickslides's Avatar
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    Quote Originally Posted by adhyeta View Post
    how do you find-

    Limits is not my strongest suit, but how can this be found for x approaches infinity if the function in question is not a function of x?
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  3. #3
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    Quote Originally Posted by pickslides View Post
    Limits is not my strongest suit, but how can this be found for x approaches infinity if the function in question is not a function of x?
    oops. its actually n not x. lol. thnx
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  4. #4
    Behold, the power of SARDINES!
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    Quote Originally Posted by adhyeta View Post
    how do you find-


    This can be identified with a Reimann sum

    \lim_{n \to \infty}\sum_{i=1}^{n}\frac{1}{i\cdot a+n} = \sum_{i=1}^{n}\frac{1}{1+\frac{i\cdot a}{n}}\left( \frac{1}{n}\right)=\int_{0}^{a}\frac{1}{1+x}dx=\ln  |a+1|
    Last edited by TheEmptySet; May 5th 2009 at 10:11 PM. Reason: had the wrong limits of integration
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