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!

Partial derivatives with constrained variables

  1. Apr 5, 2009 #1
    1. The problem statement, all variables and given/known data
    find (partialy/partialr)subscribt phetal, find (partialy/partialpheta)subscribtx, and find (partialy/partial)subsribt pehta

    2. Relevant equations
    im not sure how to write this partial in chain rule form. i think the first one (partialy/partialr)subscritpheta would simply be cos(pheta). however i have no idea how to write out the chair rule forumulas for the second and third one. please help

    3. The attempt at a solution
  2. jcsd
  3. Apr 6, 2009 #2
    please help asap !
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - Partial derivatives constrained Date
Partial derivative and limits Dec 10, 2017
Partial derivative problem... why is my answer wrong? Nov 29, 2017
Polar Partial Derivatives - Boas Ch 4 Sect 1 Prob 13 Aug 10, 2017
Partial derivative Aug 5, 2017