求方程dy/dx=(1+y^2)/(xy+yx^3)的解.
求方程dy/dx=(1+y^2)/(xy+yx^3)的解.
求方程(y^2+xy^2)dx+(x^2-yx^2)dy=0的通解
求微分方程(y^2+xy^2)dx-(x^2+yx^2)dy=0,满足初始条件(y/x=1)=-1的特解
(x³-2xy²)dy+(2y³-3yx²)dx=0求通解
求dy/dx=x+xy^/y+yx^满足初始条件y|(下面是x=0) =2的特解.
已知yx^2+2xy^3+3=-18 求dy/dx
方程3xy^2dy=(y^3-x^2)dx的通解怎么求?
x^2+xy+y^3=1,求dy/dx
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 ∫L(-yx^2-2y)dx+(xy^2+x)dy L是逆时针方向的园x^2+y^2=a^2
L为x^2+y^2=4, 计算∮L (x-yx^2)dx+(xy^2)dy的值
L为x^2+y^2=4,计算∮(x-yx^2)dx+(xy^2)dy的值?