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Let f:(4,8)to(3,4) be a function defined...

Let `f:(4,8)to(3,4)` be a function defined by `f(x)={x/4}+3` ({.} denotes fractiona part function) then `f^(-1)(x)` equals

A

`2x-6`

B

`4x-6`

C

`3x-6`

D

`4x-8`

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