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: How to find the integral of (3x^3 - 1)/x from 1 to e

  1. Apr 13, 2010 #1
    [tex]\int_{1}^{e} \frac{3x^3-1}{x} dx[/tex]

    What method? I haven't seen a problem like this before.
     
    Last edited: Apr 13, 2010
  2. jcsd
  3. Apr 13, 2010 #2

    rock.freak667

    User Avatar
    Homework Helper

    Re: Integration

    Remember how (a+b)/c = a/c + b/c ? Use a similar principle.
     
  4. Apr 13, 2010 #3
    Re: Integration

    Ah, OK so:

    [tex]\int_{1}^{e} 3x^2 -\frac{1}{x} dx[/tex]

    In which case this becomes a simple integration problem.

    Thank you!
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook