[問題]問一題數學問題
我用緒述的好了
就是1+(1/8)+(1/27)+.......
是多少阿???
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210.60.107.73 06/16, , 1F
210.60.107.73 06/16, 1F
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210.60.107.73 06/16, , 2F
210.60.107.73 06/16, 2F
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61.226.46.191 06/18, , 3F
61.226.46.191 06/18, 3F
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61.226.46.191 06/18, , 4F
61.226.46.191 06/18, 4F