2851| 3
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[几何] 各类锥线的重心poncelet锥线 |
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1+1=2吗?
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1+1=2吗?
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Comment如何证明垂心彭赛列锥线中,垂心只能是锥线的焦点?以及如何求出垂心在x轴上的彭赛列锥线
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1+1=2吗?
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2025-7-20 13:36 GMT+8
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