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Let G be the centroid of a triangle ABC ...

Let `G` be the centroid of a triangle ABC and O be any other point, then `bar(OA)+bar(OB)+bar(OC)` is equal to

A

`bar0`

B

`bar(OG)`

C

`3bar(OG)`

D

None of these

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The correct Answer is:
C
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  7. If bara is perpendicular to barb and barc,|bara|=2,|barb|=3,|barc|=4 ...

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  8. If bara,barb,barc are mutually prependicular vectors having megnitudes...

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  9. The value of [bara-barb,barb-barc,barc-bara], where |bara|=1,|barb|=5 ...

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  11. If a vector baralpha lie in plane barbeta and bargamma then which is c...

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  12. If bara,barb,barcare three coplanar vectors, then [bara+barb" "barb+ba...

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  13. If bara,barb,barc be any three non-coplanar vectors, then [bara+barb" ...

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  14. Let barA=overset(^)i+overset(^)j+overset(^)k,barB=overset(^)i,barC=C1o...

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  15. If the vectors 2overset(^)i-overset(^)j+overset(^)k,overset(^)i+2overs...

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  16. If the vectors lambdaoverset(^)i+overset(^)j+2overset(^)k,overset(^)i+...

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  17. If the vectors 4overset(^)i+11overset(^)J+moverset(^)k,7overset(^)i+2o...

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  18. If the vectors 2overset(^)i+2overset(^)j+6overset(^)k,2overset(^)i+lam...

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  19. If the four points with position vectors -2overset(^)i+overset(^)j+ove...

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  20. If the vectors bara=overset(^)i+overset(^)j+overset(^)k,barb=overset(^...

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