\[\int_{{}}^{{}}{(1+2x+3{{x}^{2}}+4{{x}^{3}}+......)\ dx=}\] – McqOptions

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1.	\[\int_{{}}^{{}}{(1+2x+3{{x}^{2}}+4{{x}^{3}}+......)\ dx=}\]
A.	\[{{(1+x)}^{-1}}+c\]
B.	\[{{(1-x)}^{-1}}+c\]
C.	\[{{(1-x)}^{-1}}-1+c\]
D.	None of these
Answer» C. \[{{(1-x)}^{-1}}-1+c\]

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