# Integration with limits 1 and infinity.

• January 16th 2013, 08:39 AM
JDAWES
Integration with limits 1 and infinity.
Show that the integration x*(theta*(1-theta)^(x-1)) dx with limits 1 and infinity equals 1/theta?
• January 16th 2013, 09:04 AM
Barioth
Re: Integration with limits 1 and infinity.
Hey the integrate you gave doesn,t give 1/theta

it end up giving something like

$\frac{\theta (1-log(1-\theta))}{(log^2(1-\theta))}$