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Having trouble differentiating this

  1. Jan 11, 2010 #1
    i am having trouble differentating this function with respect to y

    c= 425 + 1.2ln(y/(y+2)
     
  2. jcsd
  3. Jan 11, 2010 #2
    Have you tried using the log rules? They might help.

    [tex]\ln \frac{y}{y+2} = \ln y - \ln(y+2)[/tex]
     
  4. Jan 12, 2010 #3
    so
    dc/dy=1.2(1/y-1/(y+2))

    therefore in its simplest form:

    dc/dy=1.2( 2/y(y+2) )
     
  5. Jan 12, 2010 #4

    HallsofIvy

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    Was there a reason for posting this under "differential equations"? I am moving it to Calculus.
     
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