圆心O的直径AB=4,C为圆周上一点,AC=2,过点C作圆心O的切线L,过点B作l的垂线BD 请尽快做完,圆心O的直径AB=4,C为圆周上一点,AC=2,过点C作圆心O的切线L,过点B作L的垂线BD,BD与圆心O交于点E1 ,求角AEC的度
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![圆心O的直径AB=4,C为圆周上一点,AC=2,过点C作圆心O的切线L,过点B作l的垂线BD 请尽快做完,圆心O的直径AB=4,C为圆周上一点,AC=2,过点C作圆心O的切线L,过点B作L的垂线BD,BD与圆心O交于点E1 ,求角AEC的度](/uploads/image/z/9963083-11-3.jpg?t=%E5%9C%86%E5%BF%83O%E7%9A%84%E7%9B%B4%E5%BE%84AB%3D4%2CC%E4%B8%BA%E5%9C%86%E5%91%A8%E4%B8%8A%E4%B8%80%E7%82%B9%2CAC%3D2%2C%E8%BF%87%E7%82%B9C%E4%BD%9C%E5%9C%86%E5%BF%83O%E7%9A%84%E5%88%87%E7%BA%BFL%2C%E8%BF%87%E7%82%B9B%E4%BD%9Cl%E7%9A%84%E5%9E%82%E7%BA%BFBD+%E8%AF%B7%E5%B0%BD%E5%BF%AB%E5%81%9A%E5%AE%8C%2C%E5%9C%86%E5%BF%83O%E7%9A%84%E7%9B%B4%E5%BE%84AB%3D4%2CC%E4%B8%BA%E5%9C%86%E5%91%A8%E4%B8%8A%E4%B8%80%E7%82%B9%2CAC%3D2%2C%E8%BF%87%E7%82%B9C%E4%BD%9C%E5%9C%86%E5%BF%83O%E7%9A%84%E5%88%87%E7%BA%BFL%2C%E8%BF%87%E7%82%B9B%E4%BD%9CL%E7%9A%84%E5%9E%82%E7%BA%BFBD%2CBD%E4%B8%8E%E5%9C%86%E5%BF%83O%E4%BA%A4%E4%BA%8E%E7%82%B9E1+%2C%E6%B1%82%E8%A7%92AEC%E7%9A%84%E5%BA%A6)
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