1. Not finding help here? Sign up for a free 30min 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!

Integration by parts

  1. Jan 6, 2008 #1
    1. The problem statement, all variables and given/known data
    I have tried this question a number of times, but to no avail. Could somebody please help with the first couple of lines, thank you.

    [tex]\int_0^x2cte^{-ct^2}dt[/tex] where [tex]c[/tex] is a postive constant


    2. Relevant equations



    3. The attempt at a solution
    Let u=t and let dv=[tex]2ce^{-ct^2}dt[/tex]
     
    Last edited: Jan 6, 2008
  2. jcsd
  3. Jan 6, 2008 #2

    olgranpappy

    User Avatar
    Homework Helper

    just change variables to [itex]x=ct^2[/itex]. you don't need "integration by parts".
     
  4. Jan 6, 2008 #3
    1. The problem statement, all variables and given/known data

    The above was edited wrong.

    I have tried this question a number of times, but to no avail. Could somebody please help with the first couple of lines, thank you.

    [tex]\int_0^x2cte^{-ct^2}dt[/tex] where [tex]c[/tex] is a postive constant


    2. Relevant equations



    3. The attempt at a solution
    Let u=t and let dv=[tex]2ce^{-ct^2}dt[/tex]
     
  5. Jan 6, 2008 #4

    olgranpappy

    User Avatar
    Homework Helper

  6. Jan 6, 2008 #5
    Take olgranpappy's advice, all you need is a simple u-sub.
     
  7. Jan 6, 2008 #6
    Thank you, it's amazing how a simple question can transform itself into Electromagnetic Field Theory with such ease when a tired human brain is applied. Thank you again.
     
  8. Jan 6, 2008 #7
    Happens to me all the time, no worries :-]
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Integration by parts
  1. Integration by parts (Replies: 6)

  2. Integration by parts (Replies: 8)

  3. Integration by Parts (Replies: 8)

Loading...