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: No Subject

| Comment 3 of 13 |

(In reply to No Subject by Vee-Liem Veefessional)

A closed expression is just a formula -- if you want to calculate the sum, instead of summing infinite terms you just evaluate the formula.

The sum is called infinite because it has infinitely many terms.

Yes, it can be solved!

Posted by Federico Kereki on 2004-08-25 08:51:47

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