The sum of \[(n+1)\] terms of \[\frac{1}{1}+\frac{1}{1+2}+\frac{1}{1+2+3}+......\,\,\text{is }\] [RPET 1999]

The sum of \[(n+1)\] terms of \[\frac{1}{1}+\frac{1}{1+2}+\frac{1}{1+2

1.	The sum of \[(n+1)\] terms of \[\frac{1}{1}+\frac{1}{1+2}+\frac{1}{1+2+3}+......\,\,\text{is }\] [RPET 1999]
A.	\[\frac{n}{n+1}\]
B.	\[\frac{2n}{n+1}\]
C.	\[\frac{2}{n\,(n+1)}\]
D.	\[\frac{2\,(n+1)}{n+2}\]
Answer» E.

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The sum of \[(n+1)\] terms of \[\frac{1}{1}+\frac{1}{1+2}+\frac{1}{1+2+3}+......\,\,\text{is }\] [RPET 1999]

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