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!

Critical Numbers

  1. Nov 6, 2006 #1
    Find Critical Numbers of:

    F(z) = (z+1)/(z^2+z+1)

    Did I start off correctly??

    D/dz = - (z + 1)(2z+1)/(z^2+z+1)

    I think I derived it correctly??? Where do I go from this step?? Thanks
     
  2. jcsd
  3. Nov 6, 2006 #2

    mathman

    User Avatar
    Science Advisor
    Gold Member

    The derivative is wrong.

    It should be

    ((z^2+z+1)-(z+1)(2z+1))/(z^2+z+1)^2
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Critical Numbers
  1. Critical points (Replies: 4)

  2. Critical numbers (Replies: 5)

  3. Critical points (Replies: 2)

  4. Critical Points (Replies: 2)

Loading...