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Homework Help: Logarithmic differentiation

  1. Jun 19, 2008 #1
    Question:
    Find derivative of f(x)=((x^2)(x^3))/((x^4)(x^2))
    Attempt:
    ln f(x)=(lnx^2)+(lnx^3)-(lnx^4)-(lnx^2)
    Can someone tell me what I have done wrong so far?
    Thanks
     
  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

    cristo

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    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
     
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