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!

Integration by substitution and by parts

  1. Nov 30, 2006 #1
    I did a few problems in integration by parts. There are two that I just can't seem to get. I've tried every type of subsitution or part I can think of.

    1. e^sqrt(x)

    2. sin (ln x)
  2. jcsd
  3. Nov 30, 2006 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    Dearly Missed

    1. [tex]e^{\sqrt{x}}=\frac{2\sqrt{x}}{2\sqrt{x}}e^{\sqrt{x}}[/tex]
    2. [tex]\sin(\ln(x))=\frac{x}{x}\sin(\ln(x))[/tex]
    On 2., you'll get an integration "cycle"
  4. Nov 30, 2006 #3
    Or let [tex] u = e^{\sqrt{x}} [/tex] and [tex] dv = dx [/tex]
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Integration by substitution and by parts