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Math Help - Integral problems

  1. #1
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    Integral problems

    I have two integral problems:
    \int \frac{x}{x^2+3} e^{tx} dx
    \int arctan(\frac{x}{\sqrt{3}}) e^{tx} dx
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  2. #2
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    Re: Integral problems

    Neither of these have closed form solutions and both require knowledge of the Exponential Integral \displaystyle \begin{align*} \textrm{Ei}\,(x) \end{align*}.
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