The direction cosines of the line 4x-4=...

The direction cosines of the line
`4x-4=1-3y=2z-1` are :

A

`3/sqrt(56), (-4)/sqrt(56), 6/sqrt(56)`

B

`3/sqrt(29), (-4)/sqrt(29), 6/sqrt(29)`

C

`3/sqrt(61), (-4)/sqrt(61), 6/sqrt(61)`

D

4, -3, 2

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The correct Answer is:

C

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