If $f(x)=\frac{x+1}{x-1}$ then $f^{-1}(-1)=$

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If $f(x)=\frac{x+1}{x-1}$ then $f^{-1}(-1)=$

E

Editor

Sep 18, 2022

If $f(x)=\frac{x+1}{x-1}$ then $f^{-1}(-1)=$

Difficulty: Easy

A:

0

B:

\infty

C:

1

D:

-1

ID: 63273db9ca83163ac3a10767