Given that, a, b, and c are all positive integers so that a < b < c, and 1/a, 1/b, and 1/c are in arithmetic progression, can a² + b² be equal to c²?
(In reply to
I think I have it by Mindrod)
Maybe you meant to set 1/b + k = 1/c and 1/a +2k = 1/c. Also, I don't think k has to be an integer, it just has to be rational.
^{}

Posted by Eric
on 20060208 03:19:25 