1. Not finding help here? Sign up for a free 30min 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!

Derivative of sin(x^2cos(x))

  1. Feb 5, 2013 #1
    1. The problem statement, all variables and given/known data

    Derivative of sin(x^2cos(x))

    2. Relevant equations

    Product rule and chain rule

    3. The attempt at a solution
    [cos(x^2cos(x)) * (2x)(cos(x)) + (x^2)(-sin(x))]

    ?
     
  2. jcsd
  3. Feb 5, 2013 #2
    Your answer is very close. The (2x)(cos(x)) + (x^2)(-sin(x)) should be in brackets which is being multiplied by cos(x^2cos(x)). It should look like:

    ##cos(x^2cos(x))[(2x)cos(x) - x^2sin(x)]##
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Derivative of sin(x^2cos(x))
Loading...