What is the critical f(x,y)=x^2+xy+y^2 ?

The critical f(x,y)=x^2+xy+y^2 is (0,0)

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critical f(x,y)=x^2+xy+y^2

critical points

f (x, y) = x^{2} + x y + y^{2}

(0, 0)

Solution steps

x^{2} + x y + y^{2}

Find where

\nabla f (x, y)

is equal to zero or undefined

(0, 0)

f (x) = x^{3} - 75 x + 150

f (x) = x^{2} + y^{3}

f (x) = \frac{( x + 8 )}{x ^{2}}

f (x) = x^{2} - 8 ln (4 x)

f (x, y) = x^{4} + 4 x^{2} y^{2} + 4 y^{4} + 1

What is the critical f(x,y)=x^2+xy+y^2 ?
The critical f(x,y)=x^2+xy+y^2 is (0,0)