UPSC NDA Math Model Paper 5

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Question : 75 of 120

Marks: +1, -0

A line makes equal angle with coordinate axis. Direction cosines of this line are

±(1,1,1)
±(
1
√3
,
1
√3
,
1
√3
)
±(
1
√6
,
1
√6
,
1
√6
)
±(
1
3
,
1
3
,
1
3
)

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