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A function f :Rto R is defined as f (x) ...

A function `f :Rto R` is defined as `f (x) =3x ^(2) +1.` then `f ^(-1)(x)` is :

A

`(sqrt(x-1))/(3)`

B

`(1/2 sqrtx-1`

C

`f ^(-1)` does not exist

D

`sqrt((x-1)/(3))`

Text Solution

Verified by Experts

The correct Answer is:
C
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