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I have the following question for a uni assignment, I have done part A and found the stationary points to be at

x=-2 x = 2

y=-1 y=1

Not sure if it is correct though.

I did this by using finding the partial derivatives using the quoitent rule, then making the partial derivatives equal to zero and solving for x and y.

Now the second part of the question asks to find the second order DE, which would be an absolute pain to do using the quoitent rule. I am really, really lost guys.

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# Partial differentiation question

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