perplexus.info :: Just Math : Nice sum

Nice sum (Posted on 2004-08-24)

Give a closed expression for the infinite sum:

1/1 + 2/(2+3) + 3/(4+5+6) + 4/(7+8+9+10) + ...

See The Solution Submitted by Federico Kereki

Rating: 3.0000 (5 votes)

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re(2): No Subject

| Comment 4 of 13 |

(In reply to re: No Subject by Federico Kereki)

I see!

Inducing a general formula?

Vehe!

Is the answer, er,

n/n+(n+1)/[(n+1)+(n+2)]+(n+2)/[(n+3)+(n+4)+(n+5)]+... ??

Posted by Vee-Liem Veefessional on 2004-08-26 00:23:03

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