(a) If
f(x,y)=x^(2)(y)/(x^(3)+y^(3))
, does(b) Find the area of the surface
z=1+3x+2y^(2)
that lies above the triangle in the
xy
-plane with vertices
0,0 0,1
and
2,1
.
\lim_((x,y)->(0,0))f(x,y),
exist?