[理工] [工數] 99台聯大工程數學A

看板Grad-ProbAsk作者 (open)時間14年前 (2011/09/14 02:18), 編輯推噓0(0推 0噓 3→)
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One solution of the equation y''+ p(t)y'+q(t)y=0 is (1+t)^2 , and the Wronskian of any two solutions is constant. Find the general solution of y''+p(t)y'+q(t)y=1+t . -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.114.206.124
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09/14 13:27, , 1F
hint : W(y1,y2) = Const.
09/14 13:27, 1F
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09/14 13:28, , 2F
hint : Lagrange variable method
09/14 13:28, 2F
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09/14 13:29, , 3F
兩個 hint 解 homogeneous solution 與 non-homo...
09/14 13:29, 3F
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