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Find these constants I (Posted on 2005-11-10) Difficulty: 3 of 5
Given that
 k=∞          1           A*B-C*D
Σ    ------------------ = -------
 k=0 (3k+1)(3k+2)(3k+3)      E   
where A, B, C, D and E are, in some order, the number π (pi), the square root of an integer, the natural logarithm of an integer, and two integers, find their values.

See The Solution Submitted by pcbouhid    
Rating: 3.1667 (6 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Solution re: confirm Charlie | Comment 2 of 11 |
(In reply to computer soln--spoiler--don't let this inhibit you from seeking analytic soln by Charlie)

The series on the left does indeed converge to

(Pi  sqrt(3) - 3 log(3))/12

from which A, B, C, D and E can be found.

So Charlie's solution is essentially unique.


  Posted by goFish on 2005-11-11 03:58:17
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