s为三角形ABCC所在平面外一点,SA垂直于平面ABC,平面SAB垂直于平面SBC求证AB垂直于BC
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![s为三角形ABCC所在平面外一点,SA垂直于平面ABC,平面SAB垂直于平面SBC求证AB垂直于BC](/uploads/image/z/7116309-45-9.jpg?t=s%E4%B8%BA%E4%B8%89%E8%A7%92%E5%BD%A2ABCC%E6%89%80%E5%9C%A8%E5%B9%B3%E9%9D%A2%E5%A4%96%E4%B8%80%E7%82%B9%2CSA%E5%9E%82%E7%9B%B4%E4%BA%8E%E5%B9%B3%E9%9D%A2ABC%2C%E5%B9%B3%E9%9D%A2SAB%E5%9E%82%E7%9B%B4%E4%BA%8E%E5%B9%B3%E9%9D%A2SBC%E6%B1%82%E8%AF%81AB%E5%9E%82%E7%9B%B4%E4%BA%8EBC)
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