L
lmvent
Guest
我解决麻烦（或者甚至入门解决）这个等式：6Y'= 3X ^ 2（Y ^ 2 +1）的初始条件y（0）= 1的任何帮助，将不胜感激！ [SIZE = 2] [颜色=＃999999] 7分钟后添加：[/彩色] [/SIZE]没关系... ...我吧！
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