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Oblicz a. Sara: loga 9 = 12 loga 8125 = 3
31 mar 19:12
Beti: 1) a1/2 = 9 −−> a = ...
 8 
2) a3 =

−−> a = ...
 125 
31 mar 19:15
ola: 1) a = 81 2) a = 25
31 mar 19:19