Results 1 to 3 of 3

Thread: Integration By Parts Confirmation

  1. #1
    Junior Member
    Joined
    Jan 2009
    Posts
    26

    Integration By Parts Confirmation

    Is ∫ (x*(ln(x)^4) = 4ln|x|^3-12ln|x|
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Newbie
    Joined
    Jan 2009
    Posts
    14
    just check it yourself,
    derive the right side,and see if you get the left side.
    cant go safer than that
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Super Member
    Joined
    Jun 2008
    Posts
    792
    Quote Originally Posted by Fallen186 View Post
    Is ∫ (x*(ln(x)^4) = 4ln|x|^3-12ln|x|
    No.

    \int x \ln{(x)^4} ~ dx = 4 \int x\ln{x}~dx = 2 \int (x^2)'\ln{x}~dx

    Now apply integration by parts.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 2
    Last Post: Jan 11th 2012, 02:30 PM
  2. Replies: 8
    Last Post: Sep 2nd 2010, 12:27 PM
  3. Replies: 0
    Last Post: Apr 23rd 2010, 03:01 PM
  4. integration by parts
    Posted in the Calculus Forum
    Replies: 2
    Last Post: Apr 16th 2010, 12:16 AM
  5. Replies: 1
    Last Post: Feb 17th 2009, 06:55 AM

Search Tags


/mathhelpforum @mathhelpforum