Question
Find the critical points of the functions. $f(x, y)=x^{2}+y^{2}+3 x y-3 y$
Step 1
The partial derivative with respect to $x$ is: \[\frac{\partial f}{\partial x} = 2x + 3y\] The partial derivative with respect to $y$ is: \[\frac{\partial f}{\partial y} = 2y + 3x - 3\] Show more…
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