Editor
Editor
 Sep 18, 2022
0
If $f(x)=\frac{x+1}{x-1}$ then $f^{-1}(-1)=$
Difficulty: Easy
A: 
0
B: 
$\infty$
C: 
1
D: 
-1
Sponsored Ads
NETNUST Entry TestMathematicsFunctions and Limits