CBSE Class 12-science Answered
What is the explanation of the answer
Asked by | 20 Feb, 2010, 08:59: PM
Expert Answer
The line makes equal angles with the three coordinate axes.
α = β = γ
cosα = cosβ = cosγ
The relation of direction cosines,
cos2α + cos2β + cos2γ = 1
3cos2α = 1
cos2α = 1/3
cosα = 1/3 = cosβ = cosγ
Hence the direction cosines are, 1/3,1/3,1/3.
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Team,
TopperLearning.
Answered by | 21 Feb, 2010, 06:11: AM
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