SOLUTION: (1/1*2)+(1/2*3)+(1/3*4)+.........find the sum of n terms of the given series?

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Question 320727: (1/1*2)+(1/2*3)+(1/3*4)+.........find the sum of n terms of the given series?
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
Use a substitution,

So then

+...=(+...+)-(+...+)
+...

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