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[几何] 等轴双曲线一熟知结论

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1+1=？ posted 2025-6-18 23:21 from mobile |Read mode

以$O$为中心的等轴双曲线上有两点$A,B$，其中点是$M$，$MO$交双曲线于$C,D$二点，则$MA^2=MC·MD$.

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2025-6-20 20:04 GMT+8

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