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 does one jump from that integral to that integral?

  1. Sep 10, 2013 #1
    I had to do


    but it was given as a shortcut that


    and the result was


    How does one go from the 2nd to the 3d when there isn't an x^2 in the beginning there?
  2. jcsd
  3. Sep 10, 2013 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    The first integral looks funny. Why is there a factor of 1/(4-2) inside the integral?

    In future, you should follow the homework template and state the complete, original problem, along with any work you have done toward finding the solution.
  4. Sep 10, 2013 #3
    It has no ambiguity, it is actually 1/(4-2). It was based on a Uniform distribution of U(2,4).
  5. Sep 10, 2013 #4


    User Avatar

    Staff: Mentor

    fateswarm, this is unacceptable. Please start a new thread and USE THE TEMPLATE. You may not substitute pictures, you must type it all in.

    Helpers, please do not respond to threads that are missing the homework template or do not follow the rules.

    Thank you.

    Attached Files:

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