四边形ABCD中,对角线AC、BD相交于点M,且AC⊥AB,BD⊥CD,过点A作AE⊥BC,垂足为E,交BD于点F已知MA·MC=MB·MD,AD²=BF·BD,若BE=1,AE=2,求EF的长
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![四边形ABCD中,对角线AC、BD相交于点M,且AC⊥AB,BD⊥CD,过点A作AE⊥BC,垂足为E,交BD于点F已知MA·MC=MB·MD,AD²=BF·BD,若BE=1,AE=2,求EF的长](/uploads/image/z/13823439-15-9.jpg?t=%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E4%B8%AD%2C%E5%AF%B9%E8%A7%92%E7%BA%BFAC%E3%80%81BD%E7%9B%B8%E4%BA%A4%E4%BA%8E%E7%82%B9M%2C%E4%B8%94AC%E2%8A%A5AB%2CBD%E2%8A%A5CD%2C%E8%BF%87%E7%82%B9A%E4%BD%9CAE%E2%8A%A5BC%2C%E5%9E%82%E8%B6%B3%E4%B8%BAE%2C%E4%BA%A4BD%E4%BA%8E%E7%82%B9F%E5%B7%B2%E7%9F%A5MA%C2%B7MC%3DMB%C2%B7MD%2CAD%26%23178%3B%3DBF%C2%B7BD%2C%E8%8B%A5BE%3D1%2CAE%3D2%2C%E6%B1%82EF%E7%9A%84%E9%95%BF)
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