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I was given this problem in a calculus class many years ago. The teacher didn't have the answer and I am still looking.

$$\int(1+x)^{e^x}dx$$

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    Are you sure you were given $\int (1+x)^{e^x} \mathrm dx$? That one ain't simple...2011-11-06
  • 0
    Wolframalpha does not know [the integral](http://www.wolframalpha.com/input/?i=integrate+%281%2Bx%29%5E%28exp%28x%29%29).2011-11-06

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