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NDA Math Three Dimensional Geometry

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The projections of a directed line segment on the coordinate axes are 12, 4, 3 respectively.

[NDA I 2015]

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Question : 65

Total: 92

What are the direction cosines of the line segment?

(12/13,4/13,3/13)
(12/13,-4/13,3/13)
(12/13,-4/13,-3/13)
(-12/13,-4/13,3/13)

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