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Vijay Singh chauhan Asked a Question
February 23, 2021 10:08 ampts 30 pts
  • IIT JAM
  • Mathematics (MA)

If partial derivative f and fy exist at a point (a, b), then (a) continuous but need not differentiable at (a, b) (b) function is differentiable at (a, b) ()con

If partial derivative f and fy exist at a point (a, b), then (a) continuous but need not differentiable at (a, b) (b) function is differentiable at (a, b) ()continuous and differentiable at (a, b) () None of these O a O b O Od For the f(x, y) = 4 fC0,0) is (a)0 (b) 1 (c) 2 (d)-1 O a Ob O c O d
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  • Satpal singh
    see f_x and f_y are zero at (0,0) but f is not continuous and not differentiable
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  • Satpal singh
    see for second option a is correct
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  • Sonu Best Answer
    for second(a) is correct
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  • Sonu
    for first question D is correct
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  • Deepak singh thankyou
    refer attachment
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    Deepak singh
    option d is correct in question 1.. please correct it