draw vector and intersection

(b) (4 points) Consider the following parametric surface T 1 (s, t) = 0 0

(b) (4 points) Consider the following parametric surface (s, t) s + 1, cos(t), sin(t) > O s 1, 0 t < 27t t) s, scos(t), s sin(t) > 0 s I, O t < 27T Draw ? I(s, t) and 92(s, t). Draw the intersection between (s, t) and the plane z = 0, and the intersection between t) and the plane z O.