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Math Help - [SOLVED] integration

  1. #1
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    [SOLVED] integration

    \int \ {x}{arctan(x)}
    is the u
    u={x}{arctan(x)}
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  2. #2
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    \int x \arctan{x} \, dx<br />

    u = \arctan{x} ... dv = x \, dx

    du = \frac{1}{1+x^2} \, dx ... v = \frac{x^2}{2}
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