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)

Comments: ( Back to comment list | You must be logged in to post comments.)

No Subject

| Comment 2 of 13 |

How do you define closed expression?

Why is the sum called infinite?

It can be solved, can't it?

Posted by Vee-Liem Veefessional on 2004-08-24 23:36:59

Please log in:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (3)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info