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va rog
ex. 7
e urgent


Va Rog Ex 7 E Urgent class=

Răspuns :

n=13+2*(12(12+1)/2)=13+2*(12*13/2)=13+2*78=13+156=169=13 la puterea 2

n=1003+2(1002*1003/2)=1003+2*502503=1003+1005006=1006009=1003 la puterea 2