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: Maximize (nonlinear programming)

  1. Sep 19, 2009 #1
    1. The problem statement, all variables and given/known data
    Maximize xy2z3
    subject to x3 + y2 + z = 39 and x,y,z > 0

    2. Relevant equations

    3. The attempt at a solution
    I know the answer ( I got this from some site)

    x3 + y2 + z = x3 + y2/3 + y2/3 + y2/3 + z/9 + z/9 + z/9 + z/9 + z/9 + z/9 + z/9 + z/9 + z/9 ......
    = c(xy2z3)3/13

    But I do not know how I can determine a constant multiple of a suitable power of (xy2z3).

    Anybody help me
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted