ysinx+cos(x-y)=0,求dy/dx|(x=π/2)
问题描述：
ysinx+cos(x-y)=0,求dy/dx|(x=π/2)
答
两边对x求导：dy/dxsinx+ycosx-sin(x-y)(1-dy/dx)=0,将x=π/2带入已知方程得到y,再把x、y带入上式求得结果x=π/2带入已知方程得到y。。。我算不出这个y
ysinx+cos(x-y)=0,求dy/dx|(x=π/2)
两边对x求导：dy/dxsinx+ycosx-sin(x-y)(1-dy/dx)=0,将x=π/2带入已知方程得到y,再把x、y带入上式求得结果x=π/2带入已知方程得到y。。。我算不出这个y