∫ (6xy^2-y^3)dx+(6x^y-3xy^2)dy
∫ (6xy^2-y^3)dx+(6x^y-3xy^2)dy
x^2+xy+y^3=1,求dy/dx
解微分方程 (x^2y^3+xy)dy=dx
dy/dx=(x^4+y^3)/xy^2
dy/dx=(x+y^3)/xy^2
微分方程求解 (x^2y^3+xy)dy=dx
(3x+6xy+3y^2)dx+(2x^2+3xy)dy=0,解微分方程
∫(6xy^2-y^3)dx+(6x^2y-3xy^2)dy,L是任意一条分段光滑的闭曲线
下面都是求微分方程的通解:1、(y^-2xy)dx+x^2dy=0 2、(x^2+y^2)dy/dx=2xy 3、xy’
求下列微分方程的解(1)(xy+x^3y)dy-(1+y^2)dx=0 (2)(y^2-6x)y'+2y=0
dy/dx=(xy+3x-y-3)/(xy-2x+4y-8) 微分方程怎么求呀,求教,
求二次积分∫dx∫ xy/√(1+y^3)dy x[0,1] y[x^2,1]