如图,已知△ABC中,∠BAC=90°,AD⊥BC于点D,E点是AC的中点,ED、AB的延长线交于点F,试说明:AB/AC=DF/AF最好有过程.
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![如图,已知△ABC中,∠BAC=90°,AD⊥BC于点D,E点是AC的中点,ED、AB的延长线交于点F,试说明:AB/AC=DF/AF最好有过程.](/uploads/image/z/5491374-6-4.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%B7%B2%E7%9F%A5%E2%96%B3ABC%E4%B8%AD%2C%E2%88%A0BAC%3D90%C2%B0%2CAD%E2%8A%A5BC%E4%BA%8E%E7%82%B9D%2CE%E7%82%B9%E6%98%AFAC%E7%9A%84%E4%B8%AD%E7%82%B9%2CED%E3%80%81AB%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%BA%A4%E4%BA%8E%E7%82%B9F%2C%E8%AF%95%E8%AF%B4%E6%98%8E%3AAB%2FAC%3DDF%2FAF%E6%9C%80%E5%A5%BD%E6%9C%89%E8%BF%87%E7%A8%8B.)
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