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Math Help - Characteristic Equation

  1. #1
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    Question Characteristic Equation

    Find the D.E. whose characteristic equation has roots 0,0,0,2,2.
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  2. #2
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    Quote Originally Posted by onemore View Post
    Find the D.E. whose characteristic equation has roots 0,0,0,2,2.
    Did you find the characteristic equation?

    Remember that if you have an equation p(x)=0 where p(x) is a polynomial, and you factor p into (x-a)(x-b)... then the roots are a,b,.... Here you're doing the same thing backwards.

    Once you get the characteristic equation, the D.E. should be easy to find. You would normally have the D.E. and write the characteristic equation, but either way is easy.

    If you can't get the answer, let us know where you get stuck.
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