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

Let `alpha and beta` be the roots of 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

3

B

`-3`

C

6

D

`-6`

Text Solution

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The correct Answer is:
A
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