A) \[\frac{1}{x}\]
B) \[\frac{1}{x-1}\]
C) \[x-1\]
D) x
Correct Answer: D
Solution :
\[(fog)(x)=f(g(x))=f\left( \frac{x}{1-x} \right)=\frac{\frac{x}{1-x}}{\frac{x}{1-x}+1}=\frac{x}{x+1-x}=x\].You need to login to perform this action.
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