The sum of first \[n\] natural numbers is [MP PET 1984; RPET 1995]

1.	The sum of first \[n\] natural numbers is [MP PET 1984; RPET 1995]
A.	\[n\,(n-1)\]
B.	\[\frac{n\,(n-1)}{2}\]
C.	\[n\,(n+1)\]
D.	\[\frac{n\,(n+1)}{2}\]
Answer» E.

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The sum of first \[n\] natural numbers is [MP PET 1984; RPET 1995]

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