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Math Help - Integral (Converge?)

  1. #1
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    Integral (Converge?)

    For what real values of x does the integral

    converge? Prove your answer.
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  2. #2
    Eater of Worlds
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    Since t^{x-1}e^{-t}\leq{e^{\frac{-t}{2}}} and

    \int_{0}^{\infty}e^{\frac{-t}{2}}dt is convergent,

    then it is absolutely convergent for x\geq{1}
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