View Single Post
SlowToady SlowToady is offline
Registered
 
Join Date: Dec 2002
Location: www.fakelife.com
Posts: 1,672
Send a message via AIM to SlowToady
Math Help: Integration by parts

Thought I'd throw this out to the PPOT crowd.

Evaluate the integral from 1 to 4 of sqrt(t)*ln(t)dt

For the parts I set

u = ln(t)
du = (1/t)dt

dv = sqrt(x)
v = (1/(2sqrt(t)))dt

Using the integration by parts formula I get:

ln(t)(1/(2sqrt(t)))dt - integral of (1/(2sqrt(t)))*(1/t)dt

I was thinking of doing I.b.P again, but I don't see it eliminating either of the terms allowing me to integrate.

Anyone have any ideas?
__________________
I turn away with fear and horror from this lamentable sore of continuous functions without derivatives. --Charles Hermite

Fakelife.com Nothing to do with archery anymore. Porsche/BMW/Ferrari/Honda videos
Old 01-31-2007, 08:26 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)