# Math Help - antiderivative of (e^1/x) / (x^2)

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

(e^1/x) / (x^2) dx
i do not even know where to begin

2. 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?