如图,直角三角形ABC,AB,AC均为圆O切线,EB为圆O直径,连接ED,OD.(1)求证ED‖AO(2)设ED为x,AO为y,求y与x的函数关系.
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![如图,直角三角形ABC,AB,AC均为圆O切线,EB为圆O直径,连接ED,OD.(1)求证ED‖AO(2)设ED为x,AO为y,求y与x的函数关系.](/uploads/image/z/5225827-67-7.jpg?t=%E5%A6%82%E5%9B%BE%2C%E7%9B%B4%E8%A7%92%E4%B8%89%E8%A7%92%E5%BD%A2ABC%2CAB%2CAC%E5%9D%87%E4%B8%BA%E5%9C%86O%E5%88%87%E7%BA%BF%2CEB%E4%B8%BA%E5%9C%86O%E7%9B%B4%E5%BE%84%2C%E8%BF%9E%E6%8E%A5ED%2COD.%EF%BC%881%EF%BC%89%E6%B1%82%E8%AF%81ED%E2%80%96AO%EF%BC%882%EF%BC%89%E8%AE%BEED%E4%B8%BAx%2CAO%E4%B8%BAy%2C%E6%B1%82y%E4%B8%8Ex%E7%9A%84%E5%87%BD%E6%95%B0%E5%85%B3%E7%B3%BB.)
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