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## Homework Statement

[itex]

\int {\frac {1}{\sqrt {{e^{x}}+1}}} dx

[/itex]

## The Attempt at a Solution

I tried integration by parts, using [itex]{\frac {1}{\sqrt {{e^{x}}+1}}}[/itex] as u and dx as dv. This seemed to make the problem more complicated. Using e^x+1 as a u substitution won't work either. Any help getting on the right path would be greatly appreciated!