\vecr'(t) = \langle -3\sin t, 3\cos t \rangle, \quad t \in [0, 2\pi] - AMAZONAWS 📅 March 11, 2026 👤 scraface Mar 11, 2026
![\vec{r}'(t) = \langle -3\sin t, 3\cos t \rangle, \quad t \in [0, 2\pi]](https://soloferat.biz.id/images/vecrt--langle--3sin-t-3cos-t-rangle-quad-t-in-0-2pi.jpg)
