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Mathematics 13 Online
OpenStudy (anonymous):

Integral of 1/(1+e^x)... i know it's arctrig but I can't figure it out

OpenStudy (nowhereman):

Substituting z=e^x should do the trick.

OpenStudy (anonymous):

How?

OpenStudy (anonymous):

I still have an x in the function...

OpenStudy (nowhereman):

you should now only have e^x there, which you can replace by z.

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