UPSC NDA 2 2012 Mathematics Paper

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Question : 56 of 120

Marks: +1, -0

What are the direction cosines of a line which is equally inclined to the positive directions of the axes?

‌
1
√3
,‌
1
√3
,‌
1
√3
⟩
−‌
1
√3
,‌
1
√3
,‌
1
√3
⟩
−‌
1
√3
,−‌
1
√3
,‌
1
√3
⟩
‌
1
3
,‌
1
3
,‌
1
3
⟩

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