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Math Help - Integral of 1/cotx

  1. #1
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    Question Integral of 1/cotx

    I was gonna solve an ODE then I got to a point where I had to solve \displaystyle \int{\frac{1}{cot{\theta},} d{\theta}}

    The question was solve the ODE

    cot{\theta}d{\rho}+{\rho}d{\theta} =0
    Last edited by MathBond; May 15th 2011 at 03:07 AM.
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  2. #2
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    Rewrite it as \displaystyle \int{\frac{\sin{\theta}}{\cos{\theta}}\,d\theta} and solve using a substitution.
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