The direction cosines of the line x = y ...

The direction cosines of the line x = y = z are

A

(a) `(1)/(sqrt(3)),(1)/(sqrt(3)),(1)/(sqrt(3))`

B

(b) `(1)/(3),(1)/(3),(1)/(3)`

C

(c) `1,1,1`

D

(d) `(2)/(sqrt(3)),(2)/(sqrt(3)),(2)/(sqrt(3))`

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The correct Answer is:

A

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