Find the curvature of the plane curve traced out by the vector functionr(t) .rlt) = 9 sin ti + 9 cos t jK(t)[-/1 Points]DETAILSSULLIVANCALC2 11.3.039Find the curvat...

Find the curvature for the following vector functions.
$$\mathbf{r}(t)=(2 \sin t) \mathbf{i}-4 t \mathbf{j}+(2 \cos t) \mathbf{k}$$

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