What is the critical f(x,y)=x^2+y^2+3xy ?

The critical f(x,y)=x^2+y^2+3xy is (0,0)

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critical f(x,y)=x^2+y^2+3xy

critical points

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

(0, 0)

Solution steps

x^{2} + y^{2} + 3 x y

Find where

\nabla f (x, y)

is equal to zero or undefined

(0, 0)

f (x) = x - 7 x^{\frac{1}{7}}

f (x) = 4 cos (x) + 2 sin^{2} (x)

x^{4} + 2 x^{3} - 3 x^{2} - 4 x + 4

f (x) = e^{x} - 3 x

2 x^{3} - 12 x^{2} + 18 x

What is the critical f(x,y)=x^2+y^2+3xy ?
The critical f(x,y)=x^2+y^2+3xy is (0,0)