How to calculate this integral? :
$$∫(1+a/x)^{x}dx$$
here $a∈ℝ^{∗}$.
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1See Risch algorithm. – Lucian Feb 15 '14 at 19:21
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1OP: You consider the accepted answer as answering this question? – Did Feb 15 '14 at 21:46
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@Did: Yes, but it is better if there is a proof of that. – DER Feb 16 '14 at 06:27
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OP: It seems to me that you are saying simultaneously $A$ and $\lnot A$. Whatever. – Did Feb 16 '14 at 07:28
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@Did: No, it is better if there is a proof. – DER Feb 16 '14 at 09:23
