xy+㏑ y+㏑ x=0 求dy/dx

xy+㏑ y+㏑ x=0 求dy/dx 设xy+㏑y+㏑x=1,求dy/dx∣x=1 xy=e^(x+y)求dy/dx 求dy/dx+y/x=e^(xy) 设sin(x+y)=xy,求dy/dx. x^2+xy+y^3=1,求dy/dx e∧x+y=xy,求dy/dx y/x=ln(xy) 求详 dy/dx 求通解:(xy-x^2)dy=y^2dx 1.求（xy^2+x）dx+（xy^2-y）dy=0的通解 (x+xy^2)dx+(y-x^2y)dy=0求可分离变量的通解 求(x+xy^2)dx-(x^2y+y)dy=0的通解!~ 求微分方程(xy^2-x)dx+(x^2y+y)dy=0的通解 y/x=ln(xy) 求dy/dx(xy-y^2)/(xy+x^2) 求方程(x-2xy-y^2)dy+y^2dx=0的通解 xy-e^x+e^y=0,求dy/dx|x=0? 求(xy^2+x)dx+y(1+x^2)dy=0的通解 求微分方程x^2dy+(y-2xy-x^2)dx=0的通解