In Problems 1-4, se a CAS to plot of the parametric surface over the indicated domain and find the surface area of the resulting surface?
1. r(u, v) = u sin v i + u cos u j + u k; - 6 ( u ( 6, 0 ( u ( (
2. r(u, v) = sin u sin v i + cos u sin v j + sin v k; 0 ( u ( 2(, 0 ( v ( 2(
3. r(u, v) = u2 cos v i + u2 sin v j + 5u k; 0 ( u ( 2(, 0 ( v ( 2(
4. r(u, v) = cos u cos u i + cos u sin v j + cos u k; 0 ( u ( (/2, 0 ( v ( 2(