A) 0
B) \[\frac{1}{2}\]
C) 1
D) 2
Correct Answer: C
Solution :
\[f(x)=\frac{1}{1-x}\]Þ\[f\{f(x)\}=\frac{1-x}{-x}\] \[\Rightarrow \]\[f[f\{f(x)\}]=\frac{-x}{-x-1+x}=x\] \[\therefore \] Derivative of \[f[f\{f(x)\}]=1\].You need to login to perform this action.
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