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Raj Shekhar singh (anonymous) doubts approved

consider the equation x^3-3x^2+6x-1=0 , let a,b,c are roots of the equation then the centroid of the traingle whose verticals are ( a^2 ,1/a^2) , ( b^2 , 1/b^2 ) & ( c^2 , 1/c^2 ) is