求(x+xy^2)dx-(x^2y+y)dy=0的通解!~

y/x=ln(xy) 求dy/dx(xy-y^2)/(xy+x^2) 求通解:(xy-x^2)dy=y^2dx x^2+xy+y^3=1,求dy/dx (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 求微分方程 (xy∧2+x)dx+(y-x∧2y)dx=0的通解 e^y+xy=e 求 d^2y/dx^2｜x=0 求详解 求方程组dx/(x+y)=dy/(x-y)=dz / (y^2-2xy-x^2)的通积分 1.求（xy^2+x）dx+（xy^2-y）dy=0的通解 dy/dx=(xy+3x-y-3)/(xy-2x+4y-8) 微分方程怎么求呀,求教, 求微分方程dy/dx=y^2/(-x+2xy+y^2)的通解 求方程(x-2xy-y^2)dy+y^2dx=0的通解 y＝y(x) e^(xy)－xy＝2 两边对x求导数怎么做?答案是dy/dx=-y/xy=(x)是条件 设y=y(x)由方程x^2-sin(xy)=2y确定,求dy/dx 求dy/dx +xy =x(y^2)的通解 和 y' -y=x的通解急 sin(xy)=x 求dx/dysec(xy)-y ]/x 还是 x/[sec(xy)-y] 求微分方程x^2dy+(y-2xy-x^2)dx=0的通解