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Math Help - Derivative of trigonometric function

  1. #1
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    Derivative of trigonometric function

    y = 6 sin (4 TTx)



    (TT = pi)
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  2. #2
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    y = k\sin(u) , where u is a function of x ...

    \frac{dy}{dx} = k\cos(u) \cdot \frac{du}{dx}
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    dy/dx= (6 cos(4TTx))(4TT) ?
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  4. #4
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    Quote Originally Posted by tradar View Post
    dy/dx= (6 cos(4TTx))(4TT) ?
    \frac{dy}{dx} = 24\pi \cos(4\pi x)

    it's ok to clean up the algebra.
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