document.write( "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 \n" ); document.write( "

Algebra.Com's Answer #628764 by fractalier(6550) $\"\"$ $\"About$

You can put this solution on YOUR website!
Glad you rewrote this...let me take a look... \n" ); document.write( "

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