提示：如果证明三点共线太难，不妨反过来，连接AQ交BS于G，证明PG是切线。

来源: wxcfan123 于 2023-11-19 09:43:13 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.