08 Jan 2004, 17:25 dj wrote:Titleist wrote:dj wrote:lets dissect it further:1) does not tell us whether it is an integer or not2) X^2 is an integer ... what else do we need to prove 1 and 2, integer X is between 1 and 4 i.e. 2 or 3. square either of these and subtract from 49.... what we get..an integer.hmm..E is definitely the answer, after having a beer and pizza - it hit me. x^2 can be an intege