(1 point) Let
f((x)/(y))=2x^(2)+y^(2)
. Find the equation of the tangent plane of the graph
z=f((x)/(y))
at the point
[[2],[1],[9]]
.
z=
Now let
f((x)/(y))=tan^(-1)(5x^(2)+y)
. Find the equation of the tangent plane of the graph
z=f((x)/(y))
at the point
[[2],[1],[1.52321]]
.
z=