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The projection of a vector on the three ...

The projection of a vector on the three coordinate axes are `6, -3, 2`, respectively. The direction cosines of the vector are

A

`(6)/(5), - (3)/(5) , (2)/(5)`

B

`(6)/(7), - (3)/(7) , (2)/(7)`

C

`(-6)/(7),(-3)/(7),(2)/(7)`

D

6 , - 3, 2

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The correct Answer is:
B
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