问答题
设z=f(x,y),而y=y(x)由方程组
确定(其中u=u(x)可导),求
A.174.24.96:6088/Latex/latex.action?latex=XGxlZnRce1xiZWdpbnthcnJheX17Y31zaW51K3h5PTBcXCBlXnt5fS14XnsyfSszdT0wICBcZW5k%0D%0Ae2FycmF5fQ%3D%3D'
B.174.24.96:6088/Latex/latex.action?latex=XGZyYWN7ZHp9e2R4fQ%3D%3D'