Question: For the function z = f ( x , y ) = 9 x 3 - 6 y 2 - 9 x y , find

For the function z=f(x,y)=9x3-6y2-9xy, find delzdelx,delzdely,fx(5,1), and fy(5,1).
For the function z = f ( x , y ) = 9 x 3 - 6 y 2

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