Answer Happy

The minimum value of the function f(x, y) = 2x² + y² subject to the constraint xy = 2 is Select one: 2 √ 4√2 112
The local maximum and minimum values and saddle points of the function f(x, y) = -x + 4xy - 2y² + 1 Select one: (-1,-1) is a local maximum; (0,0) is a saddle point; (1,1) is a local minimum (-1,-1) is a local minimum; (0,0) is a saddle point; (1,1) is a local minimum (-1,-1) is a local maximum (0,0) is a local minimum; (1,1) is a local maximum (-1,-1) is a local maximum; (0,0) is a saddle point; (1,1) is a local maximum (-1,-1) is a local minimum (0,0) is a saddle point; (1,1) is a local maximum