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Find direction cosine of line ,makes …

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Find direction cosine of line ,makes equal angles with coordinate axes

    • Posted by Shanu Gupta 5 years, 5 months ago

    CBSE > Class 12 > Mathematics
    • 2 answers

    Santosh Kumar 5 years, 5 months ago

    Let the direction cosine of the line which make an angle à with each of the coordinates axes and direction cosines be l,m,n. l=cosà, m= cosà and n=cosà l^2+m^2+n^2=1 Cos^2à+cos^2à+cos^2à=1 3 cos^2à=1 Cos^2à=1/3 Cosà=+_1/root3

    0Thank You

    Tamanna Sharma 5 years, 5 months ago

    (1/root3 ,1/root3 ,1/root3)

    1Thank You

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