dy/dx+(2/x)y=3x^2*y^(4/3)
dy/dx=2y/x+3x/2y
2*x*y^2(dy/dx)- x^3(dy/dx)=2y^3
dy/dx=(x^4+y^3)/xy^2
dy/dx-2y/(1+x)=(x+1)^3
微分方程 dy/dx=(e^y+3x)/x^2
dy/dx-y/x=x^2
从(dx)/(dy)=1/y '导出:(d^2x)/(dy^2)=-y''/(y')^3
(x^2)dy+(y^2)dx=dx-dy
y^3+4y^2+11y=x-13 求导 dy/dx 怎么求呀?
dy/dx+(2/x)y=3x^2*y^(4/3)
dy/dx 3x^2+4y^3-2x-5y+1=0
求解一道微分方程题x*y^3*dy+(y^4-x^2)*dx=0