[" If "alpha=cos(8 pi)/(11)+i sin(8 pi)/(11)" then "],[Re(alpha+alpha^(2)+alpha^(3)+alpha^(4)+alpha^(5))" equals "]

If alpha=cos((8 pi)/(11))+i sin((8 pi)/(11)) then Re(alpha+alpha^(2)+alpha^(3)+alpha^(4)+alpha^(5)) is

If alpha = cos((8pi)/11)+i sin ((8pi)/11) then Re(alpha + alpha^2+alpha^3+alpha^4+alpha^5) is

If alpha = cos((8pi)/11)+i sin ((8pi)/11) then Re(alpha + alpha^2+alpha^3+alpha^4+alpha^5) is

If alpha=e^((i8 pi)/(11)), then find Re(alpha+alpha^(2)+alpha^(3)+alpha^(4)+alpha^(5))

If alpha=cos((8pi)/11+isin((8pi)/11 then Re(alpha+alpha^2+alpha^3+alpha^4+alpha^5) is

If alpha=cos((2 pi)/(5))+i sin((2 pi)/(5)), then find the value of alpha+alpha^(2)+alpha^(3)+alpha^(4)

If alpha=cos ((2pi)/5)+isin((2pi)/5) , then find the value of alpha+alpha^2+alpha^3+alpha^4

If alpha=cos(2 pi)/(7)+i sin(2 pi)/(7) then a quadratic equation whose roots are (alpha+alpha^(2)+alpha^(4)) and (alpha^(3)+alpha^(5)+alpha^(6)) is

If alpha=cos((2pi)/7)+i sin((2pi)/7) then a quadratic equation whose roots are (alpha+ alpha^(2)+ alpha^(4)) and (alpha^(3)+ alpha^(5)+alpha^(6))