If `x_n`=cos`pi/(2^n)`+isin`pi/(2^n)` , prove that `x_1x_2x_3 x_oo=-1.`

If x_(n)=cos(pi)/(2^(n))+i sin(pi)/(2^(n)), prove that x_(1)x_(2)x_(3)x_(oo)=-1

If x_n =cos ((pi)/(2^(n)))+isin((pi)/(2^(n))) Prove that x_1 x_2…..x_oo=-1

If x_r = cos(pi/3^r)+isin (pi/3^r) : prove that x_1x_2x_3 ....upto infinity=i

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

Statement-I : If x_n=cos(pi//2^n)+isin (pi//2^n) then x_1.x_2.x_3…..=-1 Statement-II : x_n=cos(pi//4^n)+isin(pi//4^n) then x_1.x_2.x_3…..infty=-1

If X_(n)="cos"(pi)/(2^(n))+"isin"(pi)/(2^(n)) , then x_(1), x_(2), x_(3)....oo