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Homework Help: App. of partial diffn.

  1. Sep 8, 2012 #1
    find the valu of local extremum for f(x)=sin x-cos x,0<x<2∏.
     
  2. jcsd
  3. Sep 8, 2012 #2

    HallsofIvy

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    Science Advisor

    Kind of a basic problem isn't it? Can you find the derivative of f(x)?

    Looks like homework to me so I am going to move it.

    I will also point out that, because there is only the single independent variable, x, there is NO "partial differentiation" here.
     
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