Let f be a real-valued function on the i...

Let f be a real-valued function on the interval (-1,1) such that `e^(-x) f(x)=2+underset(0)overset(x)int sqrt(t^(4)+1), dt, AA x in (-1,1)` and let `f^(-1)` be the inverse function of f. Then `[f^(-1) (2)]` is a equal to:

A

1

B

`1/3`

C

`1/2`

D

`1/e`

Verified by Experts

The correct Answer is:

B

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