如图4,等边三角形ABC中,P,Q各为AB,AC的中点,D为PQ上一点,直线CD交AB于F,直线BD交AC于E.求证:1/CE+1/BF=3/BC相似的题目.用相似做.
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![如图4,等边三角形ABC中,P,Q各为AB,AC的中点,D为PQ上一点,直线CD交AB于F,直线BD交AC于E.求证:1/CE+1/BF=3/BC相似的题目.用相似做.](/uploads/image/z/7202443-67-3.jpg?t=%E5%A6%82%E5%9B%BE4%2C%E7%AD%89%E8%BE%B9%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2CP%2CQ%E5%90%84%E4%B8%BAAB%2CAC%E7%9A%84%E4%B8%AD%E7%82%B9%2CD%E4%B8%BAPQ%E4%B8%8A%E4%B8%80%E7%82%B9%2C%E7%9B%B4%E7%BA%BFCD%E4%BA%A4AB%E4%BA%8EF%2C%E7%9B%B4%E7%BA%BFBD%E4%BA%A4AC%E4%BA%8EE.%E6%B1%82%E8%AF%81%EF%BC%9A1%2FCE%2B1%2FBF%3D3%2FBC%E7%9B%B8%E4%BC%BC%E7%9A%84%E9%A2%98%E7%9B%AE.%E7%94%A8%E7%9B%B8%E4%BC%BC%E5%81%9A.)
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