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Math Help - Integral

  1. #1
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    Integral

    Find the integral ((x^2)/(xsinx+cosx)^2)dx
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  2. #2
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    Re: Integral

    WA
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  3. #3
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    Re: Integral

    Quote Originally Posted by princeps View Post
    WA is virtually useless in this case because it won't show the steps.

    The way I would go about it, is by looking at the function, with that square in the denominator, it might be a quotient rule derivative.

    So differentiate \displaystyle \begin{align*} \frac{f}{x\sin{x} + \cos{x}} \end{align*} and set it equal to the integrand, and see if you can evaluate \displaystyle \begin{align*} f \end{align*}.
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