If \[f(x)=x-{{x}^{2}}+{{x}^{3}}-{{x}^{4}}+...to\] \[\infty \] for \[\left| x \right|

If \[f(x)=x-{{x}^{2}}+{{x}^{3}}-{{x}^{4}}+...to\] \[\infty \] for \[\l

1.	If \[f(x)=x-{{x}^{2}}+{{x}^{3}}-{{x}^{4}}+...to\] \[\infty \] for \[\left\| x \right\|
A.	\[\frac{x}{1+x}\]
B.	\[\frac{x}{1-x}\]
C.	\[\frac{1-x}{x}\]
D.	\[\frac{1}{x}\]
Answer» C. \[\frac{1-x}{x}\]

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If \[f(x)=x-{{x}^{2}}+{{x}^{3}}-{{x}^{4}}+...to\] \[\infty \] for \[\left| x \right|

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