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If the direction cosines of a vector of ...

If the direction cosines of a vector of magnitude 3 are `2/9,(-a)/9,2/3` and `agt0`, then the vector is

A

`2hati+hatj+2hatk`

B

`2hati-hatj+2hatk`

C

`hati-2hatj+2hatk`

D

`hati+2hatj+2hatk`

Text Solution

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The correct Answer is:
B
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