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Thread: help with integrating this...

  1. October 2nd 2008, 08:11 PM #1
    hashi
    hashi is offline
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    help with integrating this...

    Hi,

    how do u integrate 1/(1+e^t) ?

    Thank you
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  2. October 2nd 2008, 08:27 PM #2
    TwistedOne151
    TwistedOne151 is offline
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    Use the fact that \frac{1}{1+e^x}=1-\frac{e^x}{1+e^x}, and that if u=1+e^x, du=e^x\,dx.

    --Kevin C.
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