Let \\alpha, \\beta be the roots of the equation x^{2}-6 x-2=0 with \\alpha>\\beta. If a_{n}=\\alpha^{n}-\\beta^{n} for n \\geq1, then the value of {a_{10}-2 a_{8}}/{2 a_{9}} is

WBJEE 2021 Math Solved Paper

CATEGORY - I (Q:1 to Q50)

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Question : 11 of 75

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Let α,β be the roots of the equation x2−6x−2=0 with α>β. If an=αn−βn for n≥1, then the value of

a10−2a8

2a9

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