Find all the local maxima, local minima and saddle points of the function f(x,y)=x^3+y^3+3x^2−3y^2−8

English Mathematics
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Find all the local maxima, local minima and saddle points of the function f(x,y)=x^3+y^3+3x^2−3y^2−8

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Find all the local maxima, local minima and saddle points solution 1
Find all the local maxima, local minima and saddle points solution 1720×433 20 KB

Find all the local maxima, local minima and saddle points solution 2
Find all the local maxima, local minima and saddle points solution 2720×1007 61.5 KB