2x^2y'+2xy+1=x^2y^2
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2x^2y'+2xy+1=x^2y^2求此微分方程!!!!!
2014-12-16 1:14 am
回答 (1)
2014-12-16 1:56 am
收錄日期: 2021-04-23 23:26:56
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20141215000015KK03823