Problem #$1$:

Let

$r(t)=\frac{sin(\frac{t}{3})}{t-3}i+\frac{t^2-9}{t-3}j+ta{n}^2(\frac{}{12}t)k$

Find $\underset{t3}{lim}r(t).$

Enter the components of the limit$,$

Problem #$1$: Enter your answer symbolically, separated as in these examples with a comma.