VectorHard
Question
If 
,
,
are the position vectors of the vertices of an equilateral triangle whose orthocentre is at the origin, then -
,, are the position vectors of the vertices of an equilateral triangle whose orthocentre is at the origin, then -Options
A.+ + = 
+ + = B.2 + 2 + 2
2 + 2 + 2 C. + =
+ = D.None of these
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