2
$\begingroup$

Possible Duplicate:
Best way to integrate $ \int_0^\infty \frac{e^{-at} - e^{-bt}}{t} \text{d}t $

Compute the improper integral: $I=\int_{0}^{\infty} \frac{e^{-a x} - e^{-b x}}{x} dx$

  • 0
    @ Mhenni Benghorbal: I did it in a hurry and missed that critical issue around $0$. :D2012-08-05

0 Answers 0