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OOO3= one out of three (Posted on 2010-11-04) Difficulty: 4 of 5
Given an equation x^2+y^2+z^2=2010.
1. Prove that in every triplet of integers satisfying the above equation one number has to be even and two others odd.
2. How many integer solutions are there ?


Warning: 1 is very easy, 2 is quite tricky.

No Solution Yet Submitted by Ady TZIDON    
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re(3): solutions Comment 8 of 8 |
(In reply to re(2): solutions by Charlie)

Yes, I now see that, thanks!


  Posted by broll on 2010-11-05 11:40:46
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