已知圆o1和圆o2相交于A、B两点,点o2在圆o1上,AD为圆o2的直径,连结DB,并延长交圆o1于C,求证:CO2⊥AD
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![已知圆o1和圆o2相交于A、B两点,点o2在圆o1上,AD为圆o2的直径,连结DB,并延长交圆o1于C,求证:CO2⊥AD](/uploads/image/z/8879539-67-9.jpg?t=%E5%B7%B2%E7%9F%A5%E5%9C%86o1%E5%92%8C%E5%9C%86o2%E7%9B%B8%E4%BA%A4%E4%BA%8EA%E3%80%81B%E4%B8%A4%E7%82%B9%2C%E7%82%B9o2%E5%9C%A8%E5%9C%86o1%E4%B8%8A%2CAD%E4%B8%BA%E5%9C%86o2%E7%9A%84%E7%9B%B4%E5%BE%84%2C%E8%BF%9E%E7%BB%93DB%2C%E5%B9%B6%E5%BB%B6%E9%95%BF%E4%BA%A4%E5%9C%86o1%E4%BA%8EC%2C%E6%B1%82%E8%AF%81%3ACO2%E2%8A%A5AD)
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