Posted by kevin on Thursday, March 19, 2009 at 4:19am.
integrate 1/(x^2sqrt(1+x^2))
i know you have to use trig sub but iono how to cancel out some terms...much help is appreciated

CALCULUS HELP!!!  drwls, Thursday, March 19, 2009 at 1:35pm
Try [sqrt(1+x^2)]/x
You will get two terms when you differentiate that. Arrange them with a common denominator and see what happens.