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Chain Rule

  1. Jun 4, 2010 #1
    1. The problem statement, all variables and given/known data

    Let f(x) = (x2)/sin(x)2. Find f'(x).

    2. Relevant equations

    Chain rule, quotient rule

    3. The attempt at a solution

    f'(x) = [2xsin(x)2 - x22cos(x)2]/(sin(x)2)2
  2. jcsd
  3. Jun 4, 2010 #2


    User Avatar
    Homework Helper

    Derivative of sin(x)2 = cos(x)2*2x
  4. Jun 5, 2010 #3
    f'(x) = [2xsin(x)2 - x22xcos(x)2]/(sin(x)2)2
  5. Jun 5, 2010 #4


    Staff: Mentor

    BTW, the usual notation for (sin(x))2 is sin2(x).
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