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Math Help - How to intergrate this?

  1. #1
    Junior Member
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    How to intergrate this?

    Find. (1+3/x^2)^2 dx

    -> x + 6/x^2 + 9/x^4
    ->????????
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  2. #2
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    Hello, ansonbound!

    Find: . \int \left(1+\frac{3}{x^2}\right)^2\,dx

    We have: . \int\left(1 + \frac{6}{x^2} + \frac{9}{x^4}\right)\,dx \;=\;\int\left(1 + 6x^{-2} + 9x^{-4}\right)\,dx

    Got it?

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