# Find \int_{1}^{3}(\frac{e^{-t}}{t}dt)

• February 11th 2010, 12:11 AM
dhiab
Integral???
Calculate :
$
\int_{1}^{3}(\frac{e^{-t}}{t}dt)
$
• February 11th 2010, 12:17 AM
Drexel28
Quote:

Originally Posted by dhiab
Calculate :
$
\int_{1}^{3}(\frac{e^{-t}}{t}dt)
$

Why do you think this has an elementary answer?