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If ABCDEF is a regular hexagon with cen...

If ABCDEF is a regular hexagon with centre O , then P.T `bar(AB)+bar(AC)+bar(AD)+bar(AE)+bar(AF)=3bar(AD)=6bar(AO)`

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The correct Answer is:
`= 6 vec(AO)` (`:' vec(AD) = 2 vec(AO)`)
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