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Thread: Partial Fractions

  1. March 5th 2008, 07:24 AM #1
    ramzouzy
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    Partial Fractions

    s+9/((s^2)-14s+49) can be factored as (s+9)/(s-7)(s-7)..
    however i could not write that as partial fractions such that

    (s+9)/(s-7)^2=A(s-7)+B(s-7)

    I do not know how to get A and B... plz someone help me approach this type of problem
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  2. March 5th 2008, 07:40 AM #2
    Krizalid
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    \frac{{s + 9}}<br /> {{(s - 7)^2 }} = \frac{{(s - 7) + 16}}<br /> {{(s - 7)^2 }} = \frac{1}<br /> {{s - 7}} + \frac{{16}}<br /> {{(s - 7)^2 }}.
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