Find the arc length of the curve r(t)=⟨cos(2t),sin(2t),t⟩\mathbf{r}(t) = \langle \cos(2t), \sin(2t), t \rangler(t)=⟨cos(2t),sin(2t),t⟩ for 0≤t≤π0 \leq t \leq \pi0≤t≤π.
5π\sqrt{5}\pi5π
25π2\sqrt{5}\pi25π
π\piπ
5\sqrt{5}5