If the \[{{n}^{th}}\] term of an A.P. be \[(2n-1)\], then the sum of its first \[n\] terms will be

If the \[{{n}^{th}}\] term of an A.P. be \[(2n-1)\], then the sum of

1.	If the \[{{n}^{th}}\] term of an A.P. be \[(2n-1)\], then the sum of its first \[n\] terms will be
A.	\[{{n}^{2}}-1\]
B.	\[{{(2n-1)}^{2}}\]
C.	\[{{n}^{2}}\]
D.	\[{{n}^{2}}+1\]
Answer» D. \[{{n}^{2}}+1\]

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If the \[{{n}^{th}}\] term of an A.P. be \[(2n-1)\], then the sum of its first \[n\] terms will be

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