1.
f(u,v)=v^2i+(u+v)j+u^2
f_u=dx/du+dy/du+dz/du
f_v=dx/dv+dy/dv+dz/dv
f_uxf_v=-2u 4uv -2v
=-4
2.
(2,0,0)
(0,2,0)
(0,0,2)
Int(z)dS(S)
=x/2+y/2+z/2=1
=sqrt(51)/4
1.
Int(graf(F)/maggrad(F))dS(S)
Int(uF)dS(S)
(0..1)(0..1)
=5.571