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21. Calculați: a 0,1(6)- -[(0.25-1)-(0.(3)-2)]; 14 1 C 1,0(6)-3+ 0,(3) 15 10 e [1,25 +2,1(6) -0,125] - [4,(25) - 0,(29)]. b 15 [1.10(2)-3-(1-2-3) + 8 (1)-[1,0(6)-1,(3)]– 45​
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