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Let O be the centre of a regular hexagon...

Let `O` be the centre of a regular hexagon `A B C D E F` . Find the sum of the vectors ` vec O A , vec O B , vec O C , vec O D , vec O Ea n d vec O F` .

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Let R be the sum of the vector then
`R=sqrt(1^2+1^2+1^2)`
`R=sqrt3`
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