[張爸] 成功大學-級數之三

看板trans_math作者 (^__________^)時間16年前 (2009/06/13 16:24), 編輯推噓9(9推 0噓 17→)
留言26則, 8人參與, 最新討論串1/1
判斷下列級數之斂散性 3 5 7 2 2 2 2 - --- + --- - --- + ..... 3! 5! 7! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 219.70.173.190
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06/13 16:37, , 1F
答案是收斂^^
06/13 16:37, 1F
推
06/13 17:41, , 2F
偷問一下 熱力學是考試重點嗎?
06/13 17:41, 2F
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06/13 18:01, , 3F
熱力學必考 考台大只要知道如何求效率就好
06/13 18:01, 3F
推
06/13 18:15, , 4F
嘖嘖 物理比數學難唸
06/13 18:15, 4F
推
06/13 18:20, , 5F
氣體動力論那邊呢?
06/13 18:20, 5F
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06/13 18:33, , 6F
OK大 計算題10% @@
06/13 18:33, 6F
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06/13 18:40, , 7F
應該不會吧@@ 你要抓到確定的10% 求效率那題就
06/13 18:40, 7F
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06/13 18:40, , 8F
好@@
06/13 18:40, 8F
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06/13 20:33, , 9F
這題也是把值算出來再寫收斂
06/13 20:33, 9F
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06/13 20:55, , 10F
又不是求級數和@@
06/13 20:55, 10F
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06/13 20:58, , 11F
對齁 sorry
06/13 20:58, 11F
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06/13 21:00, , 12F
我覺得把級數和寫出來再寫收斂 應該算對
06/13 21:00, 12F
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06/13 21:32, , 13F
我覺得不能這樣寫@@ 因為題目要求斂散性就是要
06/13 21:32, 13F
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06/13 21:33, , 14F
你用某種審斂法@@ 如果是這樣那題目會直接寫求
06/13 21:33, 14F
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06/13 21:33, , 15F
級數和
06/13 21:33, 15F
推
06/13 22:47, , 16F
我是覺得級數和求出來後寫收斂應該也
06/13 22:47, 16F
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06/13 22:47, , 17F
算對耶...
06/13 22:47, 17F
推
06/13 23:11, , 18F
寫的出級數和自然就看的出歛散性了吧...
06/13 23:11, 18F
推
06/13 23:15, , 19F
如果題目只是要求判斷歛散性的話 這種作法
06/13 23:15, 19F
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06/13 23:15, , 20F
應該也可以吧
06/13 23:15, 20F
推
06/13 23:45, , 21F
這種作法絕對可以啊..
06/13 23:45, 21F
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06/13 23:46, , 22F
收歛才會有和 對於級數這兩個應該是iff.
06/13 23:46, 22F
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06/13 23:46, , 23F
的關係
06/13 23:46, 23F
推
06/14 01:07, , 24F
交錯級數
06/14 01:07, 24F
推
06/15 00:10, , 25F
這不是sin2嗎...仔細看~那是SinX...
06/15 00:10, 25F
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06/15 05:31, , 26F
有我看出來了XDD
06/15 05:31, 26F
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