几何.如图,AB,AC,BC是圆O的弦,CE是圆O的直径,CD垂直AB于点D.求证;角ACD=角BCE,延长CD交圆O于点F如图,AB,AC,BC是圆O的弦,CE是圆O的直径,CD垂直AB于点D.求证;角ACD=角BCE,延长CD交圆O于点F,连接AE,BF,求证
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![几何.如图,AB,AC,BC是圆O的弦,CE是圆O的直径,CD垂直AB于点D.求证;角ACD=角BCE,延长CD交圆O于点F如图,AB,AC,BC是圆O的弦,CE是圆O的直径,CD垂直AB于点D.求证;角ACD=角BCE,延长CD交圆O于点F,连接AE,BF,求证](/uploads/image/z/1603411-43-1.jpg?t=%E5%87%A0%E4%BD%95.%E5%A6%82%E5%9B%BE%2CAB%2CAC%2CBC%E6%98%AF%E5%9C%86O%E7%9A%84%E5%BC%A6%2CCE%E6%98%AF%E5%9C%86O%E7%9A%84%E7%9B%B4%E5%BE%84%2CCD%E5%9E%82%E7%9B%B4AB%E4%BA%8E%E7%82%B9D.%E6%B1%82%E8%AF%81%EF%BC%9B%E8%A7%92ACD%3D%E8%A7%92BCE%2C%E5%BB%B6%E9%95%BFCD%E4%BA%A4%E5%9C%86O%E4%BA%8E%E7%82%B9F%E5%A6%82%E5%9B%BE%2CAB%2CAC%2CBC%E6%98%AF%E5%9C%86O%E7%9A%84%E5%BC%A6%2CCE%E6%98%AF%E5%9C%86O%E7%9A%84%E7%9B%B4%E5%BE%84%2CCD%E5%9E%82%E7%9B%B4AB%E4%BA%8E%E7%82%B9D.%E6%B1%82%E8%AF%81%EF%BC%9B%E8%A7%92ACD%3D%E8%A7%92BCE%2C%E5%BB%B6%E9%95%BFCD%E4%BA%A4%E5%9C%86O%E4%BA%8E%E7%82%B9F%2C%E8%BF%9E%E6%8E%A5AE%2CBF%2C%E6%B1%82%E8%AF%81)
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