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continuati sirurile cu inca 6 termeni:
a)1,3,2,6,3,9...;

b)1,4,7,10,,13...


Răspuns :

a)1,3,2,6,3,9,4,12,5,15,6,18;
B)1,4,7,13,16,19,22,25,28,31;