Q.39 let f: r r be given by f(x, y) = 4xy - 2x - yt. then f has (a) a point of local maximum and a saddle point (b)a point of local minimum and a saddle point (

Q.39 Let f: R R be given by f(x, y) = 4xy - 2x - yt. Then f has (A) a point of local maximum and a saddle point (B)a point of local minimum and a saddle point (Ca point of local maximum and a point of local minimum (D)| two saddle points