What are the d . c . s of the vector equally inclined to the axes?

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Q 1431045822.     What are the d . c . s of the vector equally inclined to the axes?
A

` - frac{1}{ sqrt 3}, frac{1}{ sqrt 3}, - frac{1}{ sqrt 3}`

B

`frac{1}{ sqrt 3}, - frac{1}{ sqrt 3}, - frac{1}{ sqrt 3}`

C

`- frac{1}{ sqrt 3}, - frac{1}{ sqrt 3}, - frac{1}{ sqrt 3}`

D

`- frac{1}{ sqrt 3}, - frac{1}{ sqrt 3}, frac{1}{ sqrt 3}`

HINT

If `l, m , n` are the d.c.s of a vector, then `l^2+m^2+n^2=1`

Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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