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!

Intergal Help!

  1. Sep 28, 2007 #1
    1. The problem statement, all variables and given/known data

    Find the intergal of [tex] s*(4-s)^\frac{1}{2} [/tex]

    2. Relevant equations

    [tex] \int s*(4-s)^\frac{1}{2} dx [/tex]

    3. The attempt at a solution

    using u sub
    u = 4-s
    s = 4-u

    [tex] \int (4-u)*(u)^\frac{1}{2} du [/tex]

    [tex] \int 4u^\frac{1}{2}*u^\frac{3}{2} [/tex]

    then what?
     
    Last edited: Sep 28, 2007
  2. jcsd
  3. Sep 28, 2007 #2

    EnumaElish

    User Avatar
    Science Advisor
    Homework Helper

    You mean, [tex] \int (4u^\frac{1}{2}-u^\frac{3}{2})du [/tex]
     
  4. Sep 28, 2007 #3
    Yes, [tex] \int (4u^\frac{1}{2}-u^\frac{3}{2})du [/tex]

    to solve this do I just do the integral of the equation above then plug in 4-x for u?
     
  5. Sep 28, 2007 #4
    yes, 4-s. I think your original integral was meant to be ds not dx right?

    also when you made your u substitution du=-ds so your integral should be u^(3/2)-4*u^(1/2)
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Intergal Help!
  1. Intergal question (Replies: 2)

Loading...