F(xyz,x-y)=0确定z=z(x,y).求Z对X的偏导.

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F(xyz,x-y)=0确定z=z(x,y).求Z对X的偏导.F(xyz,x-y)=0确定z=z(x,y).求Z对X的偏导.F(xyz,x-y)=0确定z=z(x,y).求Z对X的偏导.令G(x,y,

F(xyz,x-y)=0确定z=z(x,y).求Z对X的偏导.
F(xyz,x-y)=0确定z=z(x,y).求Z对X的偏导.

F(xyz,x-y)=0确定z=z(x,y).求Z对X的偏导.
令G(x,y,z)=F(xyz,x-y),则G'x=yzF'1+F'2,G'z=xyF'1,所以az/ax=-G'x/G'z =-(yzF'1+F'2)/xyF'1