1.

Let 'f' be a real valued function defined for all x in Rsuch that for some fixed a gt 0, f(x+a)= 1/2 + sqrt(f(x)-(f(x))^(2)) for all 'x' then the period of f(x) is

Answer»

`a/4`
`a/3`
2a
3a

Answer :C


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