• 證明過程 -萬斤油- ♂ (667 bytes) () 04/21/2024 postreply 17:14:35
• 國內的數學作業都這麽難了,匪夷所思。謝謝!!!看到你的答案,想的是作CF的中垂線AH來證角GAH=60. -wxcfan123- ♂ (0 bytes) () 04/21/2024 postreply 17:58:35
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