如图,E.F为平行四边形ABCD对角线AC延长线上的点,且AE=CF,连接BF,BE,DF,DE.求证:BEDF是平行四边形.
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![如图,E.F为平行四边形ABCD对角线AC延长线上的点,且AE=CF,连接BF,BE,DF,DE.求证:BEDF是平行四边形.](/uploads/image/z/2394477-45-7.jpg?t=%E5%A6%82%E5%9B%BE%2CE.F%E4%B8%BA%E5%B9%B3%E8%A1%8C%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E5%AF%B9%E8%A7%92%E7%BA%BFAC%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%B8%8A%E7%9A%84%E7%82%B9%2C%E4%B8%94AE%3DCF%2C%E8%BF%9E%E6%8E%A5BF%2CBE%2CDF%2CDE.%E6%B1%82%E8%AF%81%EF%BC%9ABEDF%E6%98%AF%E5%B9%B3%E8%A1%8C%E5%9B%9B%E8%BE%B9%E5%BD%A2.)
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