Section 13.2: Derivatives and Integrals of Vector Functions

At what point do the curves \(\mathbf{r}_1(t) = \langle t, 1-t, 3+t^2 \rangle\) and \(\mathbf{r}_2(s) = \langle 3-s, s-2, s^2 \rangle\) intersect? Find their angle of intersection correct to the nearest degree.