已知平面P和平面Q所成的二面角为α,直线AB 平面P,且与二面角的棱成β角,与平面Q成已知平面P和平面Q所成的二面角为α,直线AB?平面P,且与二面角的棱成β角,与平面Q成γ角,那么 ( )A.sinγ=sinα&
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![已知平面P和平面Q所成的二面角为α,直线AB 平面P,且与二面角的棱成β角,与平面Q成已知平面P和平面Q所成的二面角为α,直线AB?平面P,且与二面角的棱成β角,与平面Q成γ角,那么 ( )A.sinγ=sinα&](/uploads/image/z/14350495-31-5.jpg?t=%E5%B7%B2%E7%9F%A5%E5%B9%B3%E9%9D%A2P%E5%92%8C%E5%B9%B3%E9%9D%A2Q%E6%89%80%E6%88%90%E7%9A%84%E4%BA%8C%E9%9D%A2%E8%A7%92%E4%B8%BA%CE%B1%2C%E7%9B%B4%E7%BA%BFAB+%E5%B9%B3%E9%9D%A2P%2C%E4%B8%94%E4%B8%8E%E4%BA%8C%E9%9D%A2%E8%A7%92%E7%9A%84%E6%A3%B1%E6%88%90%CE%B2%E8%A7%92%2C%E4%B8%8E%E5%B9%B3%E9%9D%A2Q%E6%88%90%E5%B7%B2%E7%9F%A5%E5%B9%B3%E9%9D%A2P%E5%92%8C%E5%B9%B3%E9%9D%A2Q%E6%89%80%E6%88%90%E7%9A%84%E4%BA%8C%E9%9D%A2%E8%A7%92%E4%B8%BA%CE%B1%2C%E7%9B%B4%E7%BA%BFAB%3F%E5%B9%B3%E9%9D%A2P%2C%E4%B8%94%E4%B8%8E%E4%BA%8C%E9%9D%A2%E8%A7%92%E7%9A%84%E6%A3%B1%E6%88%90%CE%B2%E8%A7%92%2C%E4%B8%8E%E5%B9%B3%E9%9D%A2Q%E6%88%90%CE%B3%E8%A7%92%2C%E9%82%A3%E4%B9%88+%EF%BC%88+%EF%BC%89A%EF%BC%8Esin%CE%B3%3Dsin%CE%B1%26)
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