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Homework Help: Differentiating K sin(Gt + 5)

  1. Oct 8, 2011 #1
    1. The problem statement, all variables and given/known data

    if y = K sin(Gx + 5)

    what is dy/dx

    2. Relevant equations

    y=sin x

    dy/dx = cos x

    3. The attempt at a solution

    y = K sin(Gx + 5)

    dy/dx = KG cos (Gx +5) (1)

    or

    dy/dx = KG cos GX + 5 (2)


    i think it is (1)

    is this correct or it is non of these (other)?
     
  2. jcsd
  3. Oct 8, 2011 #2

    arildno

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    Why would you think it is (2) in the first place?
    (1) is certainly correct, but your doubt indicates you are not quite familiar with the rules of differentiation yet.
     
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