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![[Post New]](/templates/default/images/icon_minipost_new.gif) 5 Feb 2007 19:45:47 IST
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i could not get the logic why you used triangular numbers in the problem 1+2+2+3+3+3+4+4+4+4+.......... plz explain it in dtail quickly
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There's Light at the end of every Tunnel, so KEEP MOVING....
Best of luck to all my mates....
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6 Feb 2007 09:18:58 IST
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consider the sequence,
1+2+2+3+3+3+4+4+4+4+..........
where is the last integer of any type ending?
the last 1 ends in the first place <1 is a triangular number>
the last 2 ends in the third place <3 is a triangular number>
the last 3 ends in the sixth place <6 is a triangular number> ..so on
obviously,one can see that the last 'n' will end in (n)(n+1)/2.
therefore in my summation , i want to find the.......
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6 Feb 2007 15:55:28 IST
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thanks for your reply amaron
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............................................................................................................................................................................................
There's Light at the end of every Tunnel, so KEEP MOVING....
Best of luck to all my mates....
............................................................................................................................................................................................
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