[中學] 級數
請問一下各位
1/(1+2)+1/(2+3)+1/(3+4)+........+1/(99+100) =?
該如何下手
想了頗久
感謝
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10/26 23:32, , 1F
10/26 23:32, 1F
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10/26 23:34, , 2F
10/26 23:34, 2F
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10/26 23:38, , 3F
10/26 23:38, 3F
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10/26 23:44, , 4F
10/26 23:44, 4F
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10/26 23:50, , 5F
10/26 23:50, 5F
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10/27 00:07, , 6F
10/27 00:07, 6F
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10/27 02:28, , 7F
10/27 02:28, 7F
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10/27 08:45, , 8F
10/27 08:45, 8F
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10/27 12:58, , 9F
10/27 12:58, 9F
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10/27 14:31, , 10F
10/27 14:31, 10F
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10/27 15:46, , 11F
10/27 15:46, 11F
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10/27 15:49, , 12F
10/27 15:49, 12F
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