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     EduGorilla 
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    A line makes angle , , ,  with the four diagonals of a cube, then:

    Options :-

    1. cos2 + cos2 + cos2  + cos2 = ¾
    2. cos2 + cos2 + cos2  + cos2 = 4/3
    3. sin2 + sin2 + sin2  + sin2 = 4/3
    4. sin2 + sin2 + sin2  + sin2 = ¾
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