If \({\rm{f}}\left( {\rm{x}} \right) = \frac{{4{\rm{x}} + {{\rm{x}}^4}}}{{1 + 4{{\rm{x}}^3}}}\) and \({\rm{g}}\left( {\rm{x}} \right) = {\rm{In\;}}\left( {\frac{{1 + {\rm{x}}}}{{1 - {\rm{x}}}}} \right)\), then what is the value of \({\rm{f\;o\;g\;}}\left( {\frac{{{\rm{e}} - 1}}{{{\rm{e}} + 1}}} \right)\) equal to?

If \({\rm{f}}\left( {\rm{x}} \right) = \frac{{4{\rm{x}} + {{\rm{x}}^4}

1.	If \({\rm{f}}\left( {\rm{x}} \right) = \frac{{4{\rm{x}} + {{\rm{x}}^4}}}{{1 + 4{{\rm{x}}^3}}}\) and \({\rm{g}}\left( {\rm{x}} \right) = {\rm{In\;}}\left( {\frac{{1 + {\rm{x}}}}{{1 - {\rm{x}}}}} \right)\), then what is the value of \({\rm{f\;o\;g\;}}\left( {\frac{{{\rm{e}} - 1}}{{{\rm{e}} + 1}}} \right)\) equal to?
A.	2
B.	1
C.	0
D.	\(\frac{1}{2}\)
Answer» C. 0

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