" f) "" )f "alpha" and "beta" are the roots of "x^(2)-2x+4=0" then "alpha^(n)+beta^(n)=

If alpha and beta are the roots of x^(2)-2x +4=0 then alpha^(n) + beta^(n) is equal to

If alpha,beta are the roots of x^(2)-2x+4=0 then alpha^(n)+beta^(n) is

If alpha and beta are the roots of x^2-2x+3=0 then alpha^2beta+ beta^2 alpha =….

If n is a multiple of 6 and alpha,beta are the roots of x^(2)+x+1=0 then (1+alpha)^(-n)+(1+beta)^(-n)

IF alpha , beta are the roots of x^(2)-x+2=0 then alpha ^ 2 beta + alpha beta ^2 =

If alpha and beta are the roots of the equation x^(2)-3x-15=0 and (n)=alpha^(n)+beta^(n) then find the value of (f(8)-3f(7)+f(6))/(2f(6))

If alpha and beta are the roots of x^2 - 2x + 4 = 0 , Prove that alpha^n+beta^n = 2^(n+1) cos((npi)/3)