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!

Integral problem, does b & a change sometime in the problem?

  1. Aug 23, 2009 #1
    Problem number 16
    http://img29.imageshack.us/img29/3179/38653938.png [Broken]
    For the record the y at the end is cubed. Thanks in advance.
     
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Aug 23, 2009 #2
    If you are referring to the limits of integration, then yes they change if you make the proper substitution that makes this integral very easy.
     
  4. Aug 23, 2009 #3
    What do you mean by: "do b and a change sometime?" Are you talking about the limits of integration changing?
     
  5. Aug 23, 2009 #4
    Yes the bounds or limits. b=2 and a=0 Why do they change to other numbers later on during the problem?
     
  6. Aug 23, 2009 #5

    zcd

    User Avatar

    If you substitute, for example, [tex]u=1+y^3[/tex], then the limits will change from ya=0, yb=2 to ua=1 and ub=9. That's because you're integrating with respect to u instead of y.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Integral problem, does b & a change sometime in the problem?
Loading...