如图,在圆O中,AB垂直CD,OE垂直BC,垂足为E,求证OE=½AD.(提示:做直径BF并连接CF、BD)
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![如图,在圆O中,AB垂直CD,OE垂直BC,垂足为E,求证OE=½AD.(提示:做直径BF并连接CF、BD)](/uploads/image/z/7627618-10-8.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E5%9C%86O%E4%B8%AD%2CAB%E5%9E%82%E7%9B%B4CD%2COE%E5%9E%82%E7%9B%B4BC%2C%E5%9E%82%E8%B6%B3%E4%B8%BAE%2C%E6%B1%82%E8%AF%81OE%3D%26%23189%3BAD.%EF%BC%88%E6%8F%90%E7%A4%BA%EF%BC%9A%E5%81%9A%E7%9B%B4%E5%BE%84BF%E5%B9%B6%E8%BF%9E%E6%8E%A5CF%E3%80%81BD%EF%BC%89)
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