The value of the expression , `(2-w)(2-w^2)+2.(3-w)(3-w^2)+....... ...... +(n-1).(n-w)(n-w^2)`, where w is an imaginary cube root of unity is

The value of the expression 1.(2-omega).(2-omega^2)+2.(3-omega)(3-omega^2)+.+(n-1)(n-omega)(n-omega^2), where omega is an imaginary cube root of unity, is………

The value of the expression 1.(2-omega).(2-omega^2)+2.(3-omega)(3-omega^2)+.+(n-1)(n-omega)(n-omega^2), where omega is an imaginary cube root of unity, is………

The value of the expression 1.(2-omega).(2-omega^2)+2.(3-omega)(3-omega^2)+.+(n-1)(n-omega)(n-omega^2), where omega is an imaginary cube root of unity, is………

The value of the expression 1.(2- omega)(2- omega^(2)) + 2.(3-omega) (3-omega^(2)) + …+ (n-1)(n- omega)(n- omega^(2)) , where omega is an imaginary cube root of unity is

The value of the expression (1+(1)/(w))(1+(1)/(w^(2)))+(2+(1)/(w))(2+(1)/(w^(2)))+(3+(1)/(w))(3+(1)/(w^(2)))+......+(n+(1)/(w))(n+(1)/(w^(2))) where w is an imaginary cube root of unity