楼主: 陈九章
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[提问] 与三角形的内切圆和旁切圆均相切的圆 |
点评
根圆最后一个半径公式有误,2不在根号内,在根号外。
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毋因群疑而阻独见 毋任己意而废人言
毋私小惠而伤大体 毋借公论以快私情 |
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