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Math Help - Finding The Coefficient of X^n

  1. #1
    kap
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    Question Finding The Coefficient of X^n

    Hello Guys,

    I am having a little problem with this question in generating functions.

    I want to find the coefficient of :

    x^n


    in

    <br />
\frac{1}{1 - 10x + 21x^2}<br />


    I am asking if someone can help me how to go about it.

    Thanks.
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  2. #2
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    Quote Originally Posted by kap View Post
    Hello Guys,

    I am having a little problem with this question in generating functions.

    I want to find the coefficient of :

    x^n


    in

    <br />
\frac{1}{1 - 10x + 21x^2}<br />

    I am asking if someone can help me how to go about it.

    Thanks.
    Use partial fractions.
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