Re: How to integrate this by pen and pencil?

From: "Daniel McLaury" <daniel_mcl@xxxxxxxxxxx>
Date: 27 Aug 2005 13:27:03 -0700

kiki wrote:
> Hi all,
>
> how do you integrate this indefinite integral?
>
> Integrate(exp(-2x)*(sec(x))^2)
>
> Thanks alot

You don't. You can't express this in a closed form without using
hypergeometric functions
(http://en.wikipedia.org/wiki/Hypergeometric_function if interested) or
something similar.

.

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