如图,AB∥CD,∠DAB=∠DCB,AE平分∠DAB且交BC于E,CF平分∠DCB且交AD于F.求证:AE∥FC.
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![如图,AB∥CD,∠DAB=∠DCB,AE平分∠DAB且交BC于E,CF平分∠DCB且交AD于F.求证:AE∥FC.](/uploads/image/z/3946258-10-8.jpg?t=%E5%A6%82%E5%9B%BE%2CAB%E2%88%A5CD%2C%E2%88%A0DAB%3D%E2%88%A0DCB%2CAE%E5%B9%B3%E5%88%86%E2%88%A0DAB%E4%B8%94%E4%BA%A4BC%E4%BA%8EE%2CCF%E5%B9%B3%E5%88%86%E2%88%A0DCB%E4%B8%94%E4%BA%A4AD%E4%BA%8EF.%E6%B1%82%E8%AF%81%EF%BC%9AAE%E2%88%A5FC.)
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