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Sep 25, 2018 at 19:22 history edited azimut
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Mar 12, 2013 at 1:16 vote accept MITjanitor
Mar 12, 2013 at 1:08 answer added azimut timeline score: 8
Mar 12, 2013 at 1:06 comment added MITjanitor Yes to the first, and it says to consider the minimum value for $a$ for all possible solutions.
Mar 12, 2013 at 1:04 comment added DonAntonio Perhaps you want $\,C\,$ to be the set of positive quadruples that fulfill the equation and, perhaps, also assume that $\,a\le b\le c\le d\,$...?
Mar 12, 2013 at 1:01 history rollback MITjanitor
Rollback to Revision 2
Mar 12, 2013 at 1:01 history rollback MITjanitor
Rollback to Revision 1
Mar 12, 2013 at 1:00 history edited MITjanitor CC BY-SA 3.0
grammar error
Mar 12, 2013 at 0:55 history asked MITjanitor CC BY-SA 3.0