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Thread: [SOLVED] Integration

  1. #1
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    [SOLVED] Integration

    $\displaystyle \int{\left(\frac{x}{x^2 + 1}\right)\,dx}$
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  2. #2
    No one in Particular VonNemo19's Avatar
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    Quote Originally Posted by nameck View Post
    $\displaystyle \int{\left(\frac{x}{x^2 + 1}\right)\,dx}$
    I responded to your other post.
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  3. #3
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    $\displaystyle

    \int{\left(\frac{x}{x^2 + 1}\right)\,dx}
    $

    $\displaystyle
    u=x^2 + 1
    $
    $\displaystyle du=2xdx$

    $\displaystyle

    = 0.5\int{\left(\frac{1}{u}\right)\,du}
    $

    $\displaystyle =
    0.5(Ln|x^2+1|) + C
    $
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