Let f: R to R be a positive increasing f...

Let `f: R to R` be a positive increasing function with `Lt_(x to oo)(f(3x))/(f(x))=1` then `Lt_(x to oo)(f(2x))/(f(x))=`

A

`(2)/(3)`

B

`(3)/(2)`

C

3

D

1

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The correct Answer is:

D

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