Given f (x, y) = 2x - 6xy - 4y, find fz(x,y) - fy(x,y)- fax(x, y)...

   

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Given f (x, y) = 2x" - 6xy - 4y, find fz(x,y) - fy(x,y)- fax(x, y) = fay(z,y) - If z=x-5y-3y, find the differential dz. You should have variables dz, dy, y, and in your answer. dz- Given f (x, y) = 2x" - 6xy - 4y, find fz(x,y) - fy(x,y)- fax(x, y) = fay(z,y) - If z=x-5y-3y, find the differential dz. You should have variables dz, dy, y, and in your answer. dz-