SOLUTION: if first term of n A.P.'s is 1 and their respective common differences are 1,2,3,..........,n,then prove that sum of their n terms will be n(n^+1)/2

SOLUTION: if first term of n A.P.'s is 1 and their respective common differences are 1,2,3,..........,n,then prove that sum of their n terms will be n(n^+1)/2

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Question 1012720: if first term of n A.P.'s is 1 and their respective common differences are 1,2,3,..........,n,then prove that sum of their n terms will be n(n^+1)/2
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Glad you rewrote this...let me take a look...
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