1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Substitution for integration of e^(x*y) dx

  1. Apr 18, 2012 #1
    Really not sure... Does any one know an appropriate substitution?

    The whole problem is:

    Find the substitution that simplifies the differential equation

    x(dy/dx) + y = e^(x*y)
     
  2. jcsd
  3. Apr 18, 2012 #2

    HallsofIvy

    User Avatar
    Science Advisor

    What is
    [tex]\frac{d(xy)}{dx}[/tex]
    ?
     
  4. Apr 18, 2012 #3
    I know the first part. It is the integration of e^(x*y) that I am having problems with, as it requires a substitution...
     
  5. Apr 19, 2012 #4
    don't you think that afterwards you will have too many (x*y)s?

    one more sentence and the other party will have to solve it -_-
     
  6. Apr 20, 2012 #5

    HallsofIvy

    User Avatar
    Science Advisor

    I understand that- and if you had answered my question, it should have become obvious to you what substitution you need.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook