Let `omega_n=cos((2pi)/n)+isin((2pi)/n), i^2=-1` then `(x+yomega_3+zomega_3^2)(x+yomega_3^2+zomega_3)=`

If omega_n = cos(frac{2pi}{n})+sin(frac{2pi}{n}) , i^2 = -1 , then (x+y(omega_3)+z(omega_3)^2)(x+y(omega_3)^2+z(omega_3)) is equal to

If a=cos((4pi)/3)+isin((4pi)/3) then ((1+a)/2)^3n is

If omega = "cos"(pi)/(n) + "i sin" (pi)/(n) , then value of 1 + omega + omega^(2) +...+omega^(n-1) is

If x_n=cos(pi/2^n)+isin(pi/2^n) , then x1 x2 x3......infinity

If a=cos((4pi)/(3))+isin((4pi)/(3)) , then the value of ((1+a)/(2))^(3n) is :

If a = cos "" (4pi)/(3) + isin "" (4pi)/(3) then ((1 + a)/(2))^(3n) =