If f: R rarr [0, oo) is a function such ...

If `f: R rarr [0, oo)` is a function such that `f(x-1)+f(x+1)=sqrt(3)f(x)`, and `f(x)` is periodic then its period is

A

12

B

14

C

11

D

10

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The correct Answer is:

A

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