The points A, B and C with position vectors →a,→b and →c, and respectively lie on a circle centred at origin O. Let G and E be the centroid of Δ ABC and Δ ACD respectively where D is midpoint of AB. If GE and OC are mutually perpendicular then orthocentre of ΔABC must lie on

The points A, B and C with position vectors →a,→b and →c, and re

1.	The points A, B and C with position vectors →a,→b and →c, and respectively lie on a circle centred at origin O. Let G and E be the centroid of Δ ABC and Δ ACD respectively where D is midpoint of AB. If GE and OC are mutually perpendicular then orthocentre of ΔABC must lie on
Answer» The points A, B and C with position vectors $\to a, \to b a n d \to c$ , and respectively lie on a circle centred at origin O. Let G and E be the centroid of $Δ$ ABC and $Δ$ ACD respectively where D is midpoint of AB. If GE and OC are mutually perpendicular then orthocentre of $Δ A B C$ must lie on