正方形ABCD与正方形ABEF有公共边AB平面AC与平面AE成60°的二面角AB=2则异面直线CF与AB所成角为.
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![正方形ABCD与正方形ABEF有公共边AB平面AC与平面AE成60°的二面角AB=2则异面直线CF与AB所成角为.](/uploads/image/z/7846877-29-7.jpg?t=%E6%AD%A3%E6%96%B9%E5%BD%A2ABCD%E4%B8%8E%E6%AD%A3%E6%96%B9%E5%BD%A2ABEF%E6%9C%89%E5%85%AC%E5%85%B1%E8%BE%B9AB%E5%B9%B3%E9%9D%A2AC%E4%B8%8E%E5%B9%B3%E9%9D%A2AE%E6%88%9060%C2%B0%E7%9A%84%E4%BA%8C%E9%9D%A2%E8%A7%92AB%3D2%E5%88%99%E5%BC%82%E9%9D%A2%E7%9B%B4%E7%BA%BFCF%E4%B8%8EAB%E6%89%80%E6%88%90%E8%A7%92%E4%B8%BA.)
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