IIT JAM
Vaishnavi Asked a Question
June 29, 2021 6:13 pmpts 30 pts
  • IIT JAM
  • Mathematics (MA)

Q86. 1f (x, y) = 21y-3xy-y' +x'y+xy has neither maximum nor minimum at (a,b). then those points is /are (b) (1,1) (a) (3 (c) -1 (d) (1,-1)

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