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Completati urmatoarele siruri cu inca trei termeni :
0;1;4;9;16;25
3;4;7;12;19
1;2;5;10;17
-1;0;3;8;15;24


Răspuns :

...36,49,64, patrate perfecte - se aduna numere impare consecutive (1,3,5,7...)
...28,39,52, se aduna numere impare consecutive (1,3,5,7...)
...26,37,50, se aduna numere impare consecutive (1,3,5,7...)
...35,48,63, se aduna numere impare consecutive (1,3,5,7...)