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JEE Advanced Mathematics question

MathematicsSolution of TrianglesJEE Advanced

Not in JEE syllabus

Let be an equilateral triangle whose orthocentre is the origin . If , then is

Answer: (C)

Solution

In an equilateral triangle the orthocentre coincides with the centroid. So the centroid is : $ = Missing argument for \vec\vec 0 ⇒ =

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Question ID VK-110433