Chapter 12.4, Problem 13ES

Use the result in Exercise 3 to find parametric equation for the tangent line to the graph of $\text{r}\left(t\right)$ at $t_0$ in terms of arc length s.

$\text{r}\left(t\right)=\sin t\text{i}+\cos t\text{j}+\frac{1}{2}{t}^2\text{k;}{t}_0=0$