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Cel mai inteligent răspuns!
2014-05-25T11:48:07+03:00
Ma=(a+b)/2=3,09

a+b=3,09*2
a+b=6,18

a=2b

2b+b=6,18
3b=6,18
b=2,06
a=2*2,06= 4,12
2 5 2