Re: [理工] [工數]-一階ODE問題
看板Grad-ProbAsk作者horse5566lee (魅力型男★☆黃敬堯☆★)時間16年前 (2009/07/18 01:59)推噓-91(17推 108噓 5→)留言130則, 15人參與討論串6/7 (看更多)
※ 引述《ecko1023 (NEIGHBORHOOD)》之銘言：
: 1.
: dy
: -- = 2-2xy+y^2
: dx
: 這題有解出來 但是答案怪怪的...
: 上來求証一下..
: 2.
: dy 2sin(y^2)
: -- = ---------- + x
: dx xycos(y^2)
: 這題
: 不是正合
: 找不到積分因子
: 不是變數可分離
: 不是齊次
: 不是線性
: 不是Bernoulli
: 不是Riccati
: 請問要怎麼解.....
原PO 請不要浪費大家時間好嗎
根據我國小同學李家宏的說法
此題一定無解~! 這題是92年中央化工考題 而且原PO應該是故意的!!
明知無解還故意問 而且題目也抄不完整
如果原題目解的出來 拜託 名子借家宏借掛一下
http://ezproxy.lib.ncu.edu.tw:8080/~arhui/cexamn/exam/EN01_92_03.pdf
原題目是第七題
這樣耍家宏 還浪費大家時間 家宏也不會再幫解這種題目了!!
知道為什麼家宏那麼生氣嗎?? 因為我算了兩天都算不出來
一直檢查哪邊有問題 是積分積錯還是合併錯誤 你真的很無聊
祝你考不到研究所!!!
--
滑鼠左鍵複製紅色方塊之後再按滑鼠右鍵貼上.你會後悔!!!請不要照著做!
X
驚見家宏，快拜！
Y
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