求微分方程的通解dy/dx=3(x-1)^2*(1+y^2)

dy/dx=3(x-1)^2*(1+y^2) dy/(1+y^2)=3(x-1)^2dxdy/(1+y^2)=3(x-1)^2d(x-1)arctany=(x-1)^3+C