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Consider f: R^(+)->Rsuch thatf(3)=1 for...

Consider `f: R^(+)->R`such that`f(3)=1` for `a in R^+ a n d """"f(x)dotf(y)+ f(3/x)f(3/y)=2f(x y)AAx ,y in R^+dot` Then find `f(x)dot`

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