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: Simple integral

  1. Oct 31, 2005 #1
    this integral can be solved without u-subsitution however, I get a different answer when I use u-sub.

    [tex]\int \frac{6}{x-6} dx [/tex]



    [tex]\int \frac{1}{6u}=\frac{1}{6}ln(x-6)[/tex]

    if U-sub wasnt used, then the answer would be 6ln(x-6)

    what am I doing wrong in the subsitution?
  2. jcsd
  3. Oct 31, 2005 #2

    James R

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    With the substitution, the integral is:

    [tex]\int \frac{6}{u} du[/tex]


    [tex]\int \frac{1}{6u} du[/tex]
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook