• February 14th 2009, 12:58 PM
pianopiano
I can't seem to solve this seemingly simple integral. It's probably easy but I don't see it. Anyone care to try? Thanks.

Integral of (e^x)*(e^(e^x)) dx
• February 14th 2009, 01:04 PM
skeeter
let $u = e^x$

$du = e^x \, dx$

$\int e^x \cdot e^{e^x} \, dx$

substitute ...

$\int e^u \, du$

now finish.
• February 14th 2009, 01:25 PM
pianopiano
Oh, thanks.

I feel stupid now. Lol.