If \[|x| – McqOptions

MCQOPTIONS

1.	If \[\|x\|<1\], then the value of\[1+n\left( \frac{2x}{1+x} \right)+\frac{n(n+1)}{2!}{{\left( \frac{2x}{1+x} \right)}^{2}}+.....\infty \]will be [AMU 1983]
A.	\[{{\left( \frac{1+x}{1-x} \right)}^{n}}\]
B.	\[{{\left( \frac{2x}{1+x} \right)}^{n}}\]
C.	\[{{\left( \frac{1+x}{2x} \right)}^{n}}\]
D.	\[{{\left( \frac{1-x}{1+x} \right)}^{n}}\]
Answer» B. \[{{\left( \frac{2x}{1+x} \right)}^{n}}\]

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