The coefficient of \[{{x}^{n}}\] in \[\frac{{{(1+x)}^{2}}}{{{(1-x)}^{3}}}\]is

The coefficient of \[{{x}^{n}}\] in \[\frac{{{(1+x)}^{2}}}{{{(1-x)}^{3

1.	The coefficient of \[{{x}^{n}}\] in \[\frac{{{(1+x)}^{2}}}{{{(1-x)}^{3}}}\]is
A.	\[3{{n}^{2}}+2n+1\]
B.	\[2{{n}^{2}}+2n+1\]
C.	\[{{n}^{2}}+n+1\]
D.	\[2{{n}^{2}}-2n+1\]
Answer» C. \[{{n}^{2}}+n+1\]

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The coefficient of \[{{x}^{n}}\] in \[\frac{{{(1+x)}^{2}}}{{{(1-x)}^{3}}}\]is

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