For unlimited access to Homework Help, a Homework+ subscription is required.
a. Find the critical point of the given function and then determine whether it is a local maximum, local minimum, or saddle point.
f(x, y) = x2 â y2 + 3xy
b. Find the critical point of the given function and then determine whether it is a local maximum, local minimum, or saddle point.
f(x, y) = x2 + y2 â xy