Given the equation of a surface S
g(x,y,z)=x^(2)+3*x*y+y^(2)-z=0
find the partial derivatives g_(x) and g_(y).
g_(x)=
g_(y)=
The equation of the tangent plane to S at the point (2,1,11) is
a*x+b*y-z=d,
with
a=
b=
d=
Given the equation of a surface S
g(x,y,z)=x2+3.x.y+y2-z=0
find the partial derivatives g and gy
9x =
The equation of the tangent plane to S at the point (2, 1, 11) is
ax+by-z=d
with
a
b=
d =