Register to reply

What is the integral of xe^-x?

by Grimertop90
Tags: antiderivative, calculus, exponential, integral
Share this thread:
Sep10-08, 04:42 PM
P: 1
I feel really dumb for not remembering this.... I'm drawing a total blank as to the antiderivative of xe-x or how to find it. Do I need to use a u substitution?
Phys.Org News Partner Science news on
Wildfires and other burns play bigger role in climate change, professor finds
SR Labs research to expose BadUSB next week in Vegas
New study advances 'DNA revolution,' tells butterflies' evolutionary history
Sep10-08, 05:08 PM
Sci Advisor
HW Helper
PF Gold
quasar987's Avatar
P: 4,771
Try integration by parts.
Sep10-08, 09:09 PM
Sci Advisor
PF Gold
P: 39,353
Let u= x, dv= e-xdx.

Count Iblis
Sep11-08, 11:39 AM
P: 2,158
What is the integral of xe^-x?

You can also compute the intergal of exp(-a x) and then differentiate w.r.t. the parameter a.

Register to reply

Related Discussions
Integral more general then Lebesgue integral? Calculus 7
Changing cartesian integral to polar integral Calculus 1
Integral - Double integral Calculus & Beyond Homework 2
QM Integral and Online Integral Tables Calculus 5
Integral using integral tables Calculus 2