已知在△abc中,AB=AC,D在AB上E在AC的延长线上,且,BD=CE,连接DE交BC于F求证DF=EF
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![已知在△abc中,AB=AC,D在AB上E在AC的延长线上,且,BD=CE,连接DE交BC于F求证DF=EF](/uploads/image/z/3782350-46-0.jpg?t=%E5%B7%B2%E7%9F%A5%E5%9C%A8%E2%96%B3abc%E4%B8%AD%2CAB%3DAC%2CD%E5%9C%A8AB%E4%B8%8AE%E5%9C%A8AC%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%B8%8A%2C%E4%B8%94%2CBD%3DCE%2C%E8%BF%9E%E6%8E%A5DE%E4%BA%A4BC%E4%BA%8EF%E6%B1%82%E8%AF%81DF%3DEF)
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