Let `alpha, beta` be roots of the equation `x^2-x-1 = 0` and `A_n=alpha^n +beta^n, n in I`, th
96 views · Published 13 October 2018 · 2:24 · Indexed 3 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW 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-
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