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If u(t) = sin(6t), cos(2t), t and v(t) = t, cos(2t), sin(6t) , use Formula 4...

If u(t) = sin(6t), cos(2t), t and v(t) = t, cos(2t), sin(6t) , use Formula 4 of this theorem to find d dt u(t) · v(t) .

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