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  1. L

    Proof involving integral

    Ah, I can't believe I didn't think of that! I'd tried a bunch of complicated methods, trying to use inverse substition and even writing the antiderivative in terms of a factorial and summation, but it was right in front of me the whole time... Thank you!
  2. L

    Proof involving integral

    Homework Statement Let I_{n} = \int_{0}^{1}x^{n}e^{-x}dx Show that 0 < I_{n} < \frac{1}{n+1} Homework Equations n/a The Attempt at a Solution I have been trying to prove this for a long time, and so far I haven't gotten anywhere. I managed to get a reduction formula for it using...
  3. L

    Tricky Definite Integral

    I have considered the properties of logs and, if there were no square roots surrounding each of the ln terms, then I would have an idea of what to do. Unfortunately, there are the square roots outside of the logs so I'm still pretty lost with this integral. :-/
  4. L

    Tricky Definite Integral

    Homework Statement Evaluate integral from -1 to 1 of: sqrt(ln(6-x))/(sqrt(ln(6-x))+sqrt(ln(6+x))) Homework Equations n/a The Attempt at a Solution I barely know how to approach this integral. I've been trying to figure this out for a long time now, and I feel like I haven't...
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