常微分方程题求教

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0 | 2007-6-3 18:52:35 | 显示全部楼层 |阅读模式

1) 2x(ye^x^2-1)dx+e^x^2dy=0 2) 2xydx+(x^2+1)dy=0 3) (e^x+3y^2)dx+2xydy=0 4) ydx-xdy=(x^2+y^2)dy 5) xy^'3=1+y^' 6) y^2(y^'-1)=(2-y^')^2 说明:其中^代表指数位,例如e^x^2即e的x平方次方.哪位会作我还另有好东东谢你. dasdkwjdjodiwjdiowjdkasjdkljowijodjawlkdjlsjdoiwuiowidjklsjkdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddwiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiaoppppppppppppppppppppppppppppppppppppppppdjjjjjjjjjjjjjjjjjjjjjwiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii参考资料：chjishi