Question 9
3 points
Find the length of the curve \(\vec{r}(t) = \langle 38 \cos(2t), -25, 38 \sin(2t) \rangle\), for \(0 \le t \le \frac{5\pi}{4}\)
Note: Write answer in terms of \(\pi\), not in decimal approximation. You may write Pi, pi or \(\pi\)
Arc Lenth is \(L = \underline{\qquad}\)