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: Relative Maximum

  1. Dec 18, 2003 #1
    For what value of k will [tex] x + \frac{k}{x}[/tex] have a relative maximum at x= -2?
     
  2. jcsd
  3. Dec 18, 2003 #2

    HallsofIvy

    User Avatar
    Science Advisor

    Looks straight forward to me.

    In order to have a critical point at all we must have f'(x)= 0.
    What is the derivative of f? In order that there be a critical point at x= -2, put x= -2 in f'(x)= 0 and solve for k.
     
    Last edited by a moderator: Dec 18, 2003
  4. Dec 18, 2003 #3
    Hey Tandoori
    Most of ur Qs are straightforward

    So it is better if u show ur attempt also
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook