1. ## integral problem

Evaluate $\int^{2x}_{0} arctan(t)\,dt$ at $x=1/2$

2. Originally Posted by ryan18
Evaluate $\int^{2x}_{0} arctan(t)\,dt$ at $x=1/2$
integration by parts ...

$
u = \arctan(t)
$

$
dv = dx
$