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[" If "a,beta" are the roots of "ax^(2)+...

[" If "a,beta" are the roots of "ax^(2)+bx+c=0" and "S_(n)=alpha^(n)+beta^(n)" then "aS_(n+1)+bS_(n)+cS_(n-1)],[[" (A) "0," (B) "1," (C) "2," (D) "5]]

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