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Deepak Patra posted an Question
December 03, 2021 • 20:17 pm 30 points
  • IIT JAM
  • Mathematics (MA)

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

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    Deepak singh 1 Best Answer

    Refer attachment

    cropped4824063915159739894.jpg
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    why????

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    because x=y

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    i got my ans .. thanks

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    ... sir at (-1,-1) the function is giving the same maximum value as in (1,1)... my question is if in option it is given that 2 maximum points and a saddle point ... is the option will be correct or not?????

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    yes , you are correct . then your option should be correct .

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