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If direction cosines of a vector of mag...

If direction cosines of a vector of magnitude 3 are `2/3 , - 9/3 , 2/3 and a gt 0 ` , then vector is _______

A

2i + j +2k

B

2i - j +2k

C

I - 2j + 2k

D

I + j + 2k

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The correct Answer is:
B
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HIMALAYA PUBLICATION-COMMON ENTRANCE TEST -2015-QUESTION BANK
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