Register to reply

Done by parts integral and simplify

by Yegor
Tags: integrate
Share this thread:
Yegor
#1
Feb3-05, 09:18 AM
P: 147
i have to integrate the next:

(x^2)(e^x)dx/((x+2)^2)

It should be done by parts.
How I can simplify it?

Is (4x+4) (e^x) dx/(x+2)^2 easier to be integrated?
Phys.Org News Partner Science news on Phys.org
'Office life' of bacteria may be their weak spot
Lunar explorers will walk at higher speeds than thought
Philips introduces BlueTouch, PulseRelief control for pain relief
K.J.Healey
#2
Feb3-05, 10:34 AM
P: 641
the easiest way to do this is by parts.
let u=(x^2)(e^x)
let dv = 1/(x+2)^2

get du by differentiating u by x
get v by integrating dv in terms of x

then write out u*v - integral(v*du)
the integral simplifies pretty nicely.
Yegor
#3
Feb3-05, 10:41 AM
P: 147
Thank You a lot!


Register to reply

Related Discussions
What is the best way to integrate this? Calculus 22
How do you integrate this? General Math 6
Integrate ln(4+y^2)dy? Calculus 8
How do I integrate this? Calculus & Beyond Homework 4
How to integrate? Calculus & Beyond Homework 5