- Thread starter
- #1
- Jan 17, 2013
- 1,667
$$ \int^{\infty}_0 \frac{\tanh(x) }{xe^x} \, dx $$
$\tanh(x) \text{ is the tangent hyperbolic function }$
$\tanh(x) \text{ is the tangent hyperbolic function }$
I thought only Physicists were allowed to do that! Of course we rarely check to see if we can....I will solve this using differentiation under the integral sign.