如图1-3-18,已知正方形 ABCD的对角线AC、BD相交于点O,E是AC上一点,连结EB.过A作AM⊥BE,垂足为M,AM交BD于点F.(1)求证:OE=OF;(2)如图1-3-19,若点E在 AC的延长线上,AM⊥BE于点M,交DB的延长线
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![如图1-3-18,已知正方形 ABCD的对角线AC、BD相交于点O,E是AC上一点,连结EB.过A作AM⊥BE,垂足为M,AM交BD于点F.(1)求证:OE=OF;(2)如图1-3-19,若点E在 AC的延长线上,AM⊥BE于点M,交DB的延长线](/uploads/image/z/5399924-68-4.jpg?t=%E5%A6%82%E5%9B%BE1%EF%BC%8D3%EF%BC%8D18%2C%E5%B7%B2%E7%9F%A5%E6%AD%A3%E6%96%B9%E5%BD%A2+ABCD%E7%9A%84%E5%AF%B9%E8%A7%92%E7%BA%BFAC%E3%80%81BD%E7%9B%B8%E4%BA%A4%E4%BA%8E%E7%82%B9O%2CE%E6%98%AFAC%E4%B8%8A%E4%B8%80%E7%82%B9%2C%E8%BF%9E%E7%BB%93EB%EF%BC%8E%E8%BF%87A%E4%BD%9CAM%E2%8A%A5BE%2C%E5%9E%82%E8%B6%B3%E4%B8%BAM%2CAM%E4%BA%A4BD%E4%BA%8E%E7%82%B9F%EF%BC%8E%EF%BC%881%EF%BC%89%E6%B1%82%E8%AF%81%EF%BC%9AOE%3DOF%EF%BC%9B%EF%BC%882%EF%BC%89%E5%A6%82%E5%9B%BE1%EF%BC%8D3%EF%BC%8D19%2C%E8%8B%A5%E7%82%B9E%E5%9C%A8+AC%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%B8%8A%2CAM%E2%8A%A5BE%E4%BA%8E%E7%82%B9M%2C%E4%BA%A4DB%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF)
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