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The points A, B and C with position vectors veca, vecb and vec c respectively lie on a circle centered at origin O. Let G and E be the centroid of DeltaABC and DeltaACD respectively where D is mid point of AB. Q.If OE and CD are mutually perpendicular, then which of the following will be necessarily true ? |
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Answer» `|vecb-veca|=|VEC C-veca|` |
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