If α, β are the roots of the equation ax 2 + bx + c = 0 and s n = α n + β n , then a s n…

Mathematics · JEE Advanced · NTA Exams — Complex Numbers and Quadratic Equations

1. b S_n
2. b²S_n
3. 2bS_n
4. – bS_n

Answer

(D) – bS n

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