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2014-10-27T17:21:52+02:00
D15 sunt -15,-5,-3,-1,1,3,5,15.
D45 sunt -45,-15,-9,-5,-3,-1,1,3,5,9,14,45.
D15intersectat cu D45={-15,-5,-3,-1,1,3,5,15}=D15
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2014-10-27T17:23:25+02:00