Thursday, 4 July 2013

Doubt about series - which series is this?












I really can't remember (if I have ever known this): which series is this and how to demonstrate its solution?



ni=1i=n(n+1)2


Answer



This is an Arithmetic Series starting from 1 with difference 1.
ni=1i=1+2+3+4+...+n=n(n+1)2
1#Check this out.
2#There's one another related one.


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