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If A, B, C are the vertices of a triangl...

If A, B, C are the vertices of a triangle whose position vectors are `vec a, vec b, vec c` and G is the centroid of the triangle ABC, then `vec GA + vec GB + vec GC =`

A

`2 vec GB`

B

`2 vec GA`

C

`vec O`

D

`vec BG`

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The correct Answer is:
D
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