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Let f: R-> R be a positive increasing fu...

Let `f: R-> R` be a positive increasing function with `lim_(x->oo)(f(3x))/(f(x))=1`.Then `lim_(x->oo)(f(2x))/f(x)` is

A

1

B

`(2)/(3)`

C

`(3)/(2)`

D

3

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