Let `alpha, beta` are roots of` x^2+12x-9=0`. If `a_n=alpha^n+beta^n` for `n>=1` then the value of `sum_(n=1)^10((9a_n-a_(n+2) )/(2a_(n+1)))=`

Let alpha,beta are roots of x^(2)+12x-9=0. If a_(n)=alpha^(n)+beta^(n) for n>=1 then the value of sum_(n=1)^(10)((9a_(n)-a_(n+2))/(2a_(n+1)))=

Let alpha and beta are the roots of x^(2)+10x-7=0. If a_(n)=alpha^(n)+beta^(n) for n<=1 then the value of (a_(12)-7a_(10))/(2a_(11)) is

Let alpha and beta be the roots of x^(2)-6x-2=0 with alpha>beta if a_(n)=alpha^(n)-beta^(n) for n>=1 then the value of (a_(10)-2a_(8))/(2a_(9))

Let alpha and beta be the roots of the equation x^2-6x-2=0 If a_n=alpha^n-beta^n for ngt=0 then find the value of (a_10-2a_8)/(2a_9)

Let alpha and beta be the roots of x^2-6x-2=0 with alpha>beta if a_n=alpha^n-beta^n for n>=1 then the value of (a_10 - 2a_8)/(2a_9)

Let alpha and beta be the roots of x^2-6x-2=0 with alpha>beta if a_n=alpha^n-beta^n for n>=1 then the value of (a_10 - 2a_8)/(2a_9)

Let alpha and beta be the roots of x^2-6x-2=0 with alpha>beta if a_n=alpha^n-beta^n for n>=1 then the value of (a_10 - 2a_8)/(2a_9)

Let alpha and beta be the roots of the equation x^(2)-6x-2=0 If a_(n)=alpha^(n)-beta^(n) for n>=0 then find the value of (a_(10)-2a_(8))/(2a_(9))