B為原點,圓心O(x,y), OB=OA=OC,解得O(4sqrt2-3/2, 3/2),2OB=12-sqrt2

來源: 羅擊於 2024-02-06 00:25:41 [舊帖] [給我悄悄話] 本文已被閱讀：次

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