Below is a question I have for an assignment. It is saying that number 2 is wrong. Cannot for the life of me work out why. Please help

LetAbe the area of the hemisphere of radius 8 which given by:

x2+y2+z2=64 where 0≤z≤4

1.Indicate the correct parameterisation of the surface:

( x,y,z)=S(u,v)=64(cosusinv,sinusinv,cosv); where 0≤u≤2π,π3≤v≤π2(x,y,z)=S(u,v)=8(cosusinv,sinusinv,cosv); where 0≤u≤2π,π3≤v≤π2( x,y,z)=S(u,v)=8(cosusinv,sinusinv,cosv); where 0≤u≤2π,0≤v≤π3( x,y,z)=S(u,v)=8(cosusinv,sinusinv,cosv); where 0≤v≤2π,π3≤u≤π22.Find the normal to the surface N(u,v)=∂S∂u×∂S∂v=64( -cos u sin^2 v, -sin u sin^2 v, -sin v cosv)Answer is a Vector3.Evaluate the area A=Answer is a Number