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作者 scarbywind 在 PTT [ Math ] 看板的留言(推文), 共4則
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[微積] 請問一題三角函數求極值問題
[ Math ]2 留言, 推噓總分: 0
作者: smart55 - 發表於 2017/11/27 10:12(8年前)
1Fscarbywind: 先用合角跟倍角公式展開在微不就好了...11/27 11:51
Fw: [問卦] 如何證明1+1=2
[ Math ]36 留言, 推噓總分: +9
作者: jameskey - 發表於 2015/09/15 01:03(10年前)
24Fscarbywind: #0-7-C1CF09/15 02:14
[其他] 已知數列和可否求平方和
[ Math ]6 留言, 推噓總分: +2
作者: greentooth - 發表於 2011/12/13 00:51(14年前)
2Fscarbywind:哪種數列... 只看題目的話答案甚至可以到無限12/13 00:54
4Fscarbywind:數列項未知 和可以趨0 ((10/n)^2)*n=100/n12/13 16:15
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