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I last did this kind of work years ago in university. Can som1 please help me with the derivative.

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- Thread starter CloDawg
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I last did this kind of work years ago in university. Can som1 please help me with the derivative.

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Mark44

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It is against Physics Forums policy to provide answers to posters' questions.

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d(uv)/dx=u(dv/dx)+v(du/dx)

u=sin(x)

v=cos^3(x)

(dv/dx) = -3sin((x))cos^2(x)

(du/dx) = cos(x)

d(uv)/dx= -3sin^2(x)cos^2(x) + cos^4(x)

Is this correct?

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