Let `alpha, beta` be roots of the equation `x^2-x-1 = 0` and `A_n=alpha^n +beta^n, n in I`, then `A_(n+2)+ A_(n-2)` is equal to-

If alpha, beta are the roots of the equation ax^(2)+bx+c=0 and A_(n)=alpha^(n)+beta^(n) , then aA_(n+2)+bA_(n+1)+cA_n is equal to

If alpha, beta are the roots of the equation ax^(2)+bx+c=0 and A_(n)=alpha^(n)+beta^(n) , then aA_(n+2)+bA_(n+1)+cA+(n) is equal to

If alpha and beta are the roots of the equation x^(2)-ax+b=0 and A_(n)=alpha^(n)+beta^(n)

Let alpha and beta be the roots of the equation 5x^2+6x-2=0 . If S_n=alpha^n+beta^n, n=1,2,3.... then

Let alpha and beta be the roots of the equation 5x^2+6x-2=0 . If S_n=alpha^n+beta^n, n=1,2,3.... then

Let alpha and beta be the roots of the equation x^(2) -px+q =0 and V_(n) = alpha^(n) + beta^(n) , Show that V_(n+1) = pV_(n) -qV_(n-1) find V_(5)

Let alpha and beta be the roots of the equation x^(2) -px+q =0 and V_(n) = alpha^(n) + beta^(n) , Show that V_(n+1) = pV_(n) -qV_(n-1) find V_(5)

Let alpha and beta be the roots of the equation x^2-6x-2=0 . If a_n=alpha^n-beta^n , for nge1 , then the value of (a_10-2a_8)/(2a_9) is equal to

lf alpha and beta are the roots of the equation x^2-ax + b = 0 and A_n = alpha^n + beta^n , then which of the following is true ?

If alpha,beta be the roots of x^(2)-x-1=0 and A_(n)=alpha^(n)+beta^(n), then A . M of A_(n-1) and A_(n), is