Let →p is the position vector of the orthocentre & →g is the position vector of the centroid of the triangle ABC where circumcentre is the origin. If →p=K→g, then K=
A
3
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B
2
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C
13
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D
23
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Solution
The correct option is A3 →p=→a+→b+→c as per the orthocentre definition. Also, centroid →g=→a+→b+→c3 where, →a,→b,→c are the position vectors of points A,B,C of the triangle respectively.