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## Main Question or Discussion Point

How would you compute the derivative of cos(t^3)? Would you use the chain rule? Does anyone have a good way of recognizing when to use chain rule and when not to?

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How would you compute the derivative of cos(t^3)? Would you use the chain rule? Does anyone have a good way of recognizing when to use chain rule and when not to?

quasar987

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[tex]\frac{d}{dt}(\cos(t^3))=-\sin(t^3)\cdot (3 t^2)[/tex]

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f( g( h( k(x) ) ) ) it's derivative with respect to x is f'( g( h( k(x) ) ) ) * g'( h( k(x) ) ) * h'( k(x) ) * k'(x)

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