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If the direction cosines of a line are l...

If the direction cosines of a line are `lt k, k, kgt` then

A

`k gt 0`

B

`0 lt k lt 1`

C

`k =1`

D

`k = (1)/(sqrt3) or - (1)/(sqrt3)`

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The correct Answer is:
D
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VMC MODULES ENGLISH-THREE DIMENSIONAL GEOMETRY -JEE ADVANCED (ARCHIVE)
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