# antiderivative of (e^1/x) / (x^2)

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• Sep 15th 2009, 06:37 PM
genlovesmusic09
antiderivative of (e^1/x) / (x^2)
(e^1/x) / (x^2) dx
i do not even know where to begin
• Sep 15th 2009, 06:55 PM
Krizalid
what substitution do you think you need to do?

remember the problem you recently posted about $(1+e^{\tan x})\sec^2x$ ? you found the substitution you needed to do, can you know find what's the substitution needed here?