(d^2 y/dx^2)+(dy/dx)-2y=0的通解是多少
微分方程d^2y/dx^2-2dy/dx-3y=0的通解
求微分方程通解 d^2y/dx^2-e^y* dy/dx=0
求微分方程的通解:x^2(d^2y/dx^2)=(dy/dx)^2+2x(dy/dx)
dy/dx-2+y/x=0的通解是什么?
(x-2y)dy+dx=0的通解
求dx+(x+y^2)dy=0的通解
微分方程dy/dx=y/(x+y^2)的通解?
(d^3y/dx^3)-2(d^2y/dx^2)-dy/dx+2y=0的通解怎么求?
dy/dx=1/(x+y)^2的通解为
求dy/dx=(x+y)^2的通解
dy/dx=-y^2/x的通解
dy/dx=k(y)^2+c的通解为?