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The direction-ratios of the diagonal of ...

The direction-ratios of the diagonal of a cube, which joins the origin to the opposite corner are (when the 3 concurrent edges of the cube are coordinate axes):

A

`lt 2/sqrt3, 2/sqrt3,2/sqrt3 gt`

B

`lt 1, 1 ,1 gt`

C

`lt 2,-2,1 gt`

D

`lt 1 , 2 ,3 gt`

Text Solution

Verified by Experts

The correct Answer is:
B
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