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Math Help - ODE - Integrating factor proofs

  1. #1
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    ODE - Integrating factor proofs

    Hi guys,
    I would like some help on this problem.
    ODE - Integrating factor proofs-exercise-set-2-question-3.jpg
    I have a quiz soon, which is on this problem set. I can't get help tomorrow as I have classes all day. I have been really busy during the last few weeks on the family farm. I have hired a personal tutor, but we don't start until after the quiz. Thus help would be much much appreciated.

    I'm not exactly sure how to model this.

    Thanks in advance,

    GirandoniAirRifle
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  2. #2
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    Re: ODE - Integrating factor proofs

    Well have you at least started by multiplying both sides by $\displaystyle \begin{align*} \mu = \mathrm{e}^{\int{ p(x)\,\mathrm{d}x } }\end{align*}$?

    Also, this will help you: $\displaystyle \begin{align*} \left[ u(x) \, v(x) \right] ' = u(x)\,v'(x) + u'(x)\,v(x) \end{align*}$
    Thanks from topsquark
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