Vijay Singh chauhan Asked a Question
April 29, 2021 6:25 ampts 30 pts
please send the solution to the problem given in the attachment
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  • Alka gupta Best Answer
    you solve correct....when we get rt-s^2 =0 then we have to check sign of f(x,y)-f(a,b)....
    • cropped1578391840267853063.jpg
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    Vijay Singh chauhan
    can you please show me analytically how do we check max or min by the nbd. idea. that you have talked about in your cases.
  • Deepak singh thankyou
    Refer attached
    • cropped132569548840047880.jpg
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    Deepak singh
    in case of inconclusive , we do observe method ..(i.e inspecting/observing equation
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