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: Logarithmic differentiation

  1. Jun 19, 2008 #1
    Find derivative of f(x)=((x^2)(x^3))/((x^4)(x^2))
    ln f(x)=(lnx^2)+(lnx^3)-(lnx^4)-(lnx^2)
    Can someone tell me what I have done wrong so far?
  2. jcsd
  3. Jun 19, 2008 #2
    forgot to take log of both sides?

    bring your powers down.. oo well, u prolly know this
  4. Jun 19, 2008 #3


    User Avatar
    Staff Emeritus
    Science Advisor

    Why don't you just simplify and then differentiate?
  5. Jun 19, 2008 #4
    I did take the log of both sides. I'm doing it this way because i need to learn this method of differentiation.
  6. Jun 19, 2008 #5
    oo yep, just realized that.
    everything looks good
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook