Chapter 12.2, Problem 14ES

Find the vector $\text{r}\text{'}\left(t_0\right);$ then sketch the graph of $\text{r}\left(t\right)$ in 2-space and draw the tangent vector $\text{r}\text{'}\left(t_0\right).$

$\text{r}\left(t\right)=2\sin t\text{i}+3\cos t\text{j};t_0=\pi /6$