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Let alpha and beta be the roots of x^2-6...

Let `alpha` and `beta` be the roots of `x^2-6x-2=0` with `alpha>beta` if `a_n=alpha^n-beta^n` for ` n>=1` then the value of `(a_10 - 2a_8)/(2a_9)`

A

1

B

2

C

3

D

4

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The correct Answer is:
C
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