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Find derivative at 1 of this complicated function

  1. Jul 23, 2008 #1

    sa1

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    1. The problem statement, all variables and given/known data
    find dy/dx at x=-1 .


    2. Relevant equations
    sin ysin pi*x/2 + 31/2/2(sec-12x) +2x(tan(ln(x+2)))=0


    3. The attempt at a solution
    There is coming a term ln(sin pi*x/2) during differentiation which will be a ln of a negative number. Sorry if the problem is too easy .I am just starting differentiation.
     
  2. jcsd
  3. Jul 23, 2008 #2

    Defennder

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    Homework Helper

    Re: Differentiation

    Is that really [tex]\sin (y^\frac{sin \pi x}{2})[/tex]?
     
  4. Jul 23, 2008 #3

    sa1

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    Re: Differentiation

    no it is (sin y)sin (pi*x/2)
     
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