设z=f(x,y),由F(x,y,z)=0确定,且FX(x,y,z)=a,Fy(x,y,z)=b ,Fz(x,y,z)=c,求fx的偏导

问题描述:

设z=f(x,y),由F(x,y,z)=0确定,且FX(x,y,z)=a,Fy(x,y,z)=b ,Fz(x,y,z)=c,求fx的偏导

∂z/∂x=-Fx/Fz=-a/c