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Math Help - partial fraction

  1. #1
    Junior Member
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    partial fraction

    i'm having trouble to find A, B, C, D:
    \frac{6}{[(s+1)^2 + 1]^2} = \frac{As + B}{(s+1)^2 + 1} + \frac{Cs + D}{[(s+1)^2 + 1]^2}
    Thanks
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  2. #2
    Super Member TheChaz's Avatar
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    Re: partial fraction

    The second term has degree 4, so you should have a degree 3 expression in the numerator... Cx^3 + Dx^2 + Ex + F
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  3. #3
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    Re: partial fraction

    you are right hurz, but it will be easier to write denominator as s^2 + 2s + 2
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