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Let alpha and beta be the roots of the e...

Let `alpha` and `beta` be the roots of the equation `x^2-6x-2=0`. If `a_n=alpha^n-beta^n`, for `nge1`, then the value of `(a_10-2a_8)/(2a_9)` is equal to

A

-6

B

3

C

-3

D

6

Text Solution

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The correct Answer is:
B
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