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(1/3)la puterea a doua :(0,25-1/6)-1/3

Răspuns :

(1/3)^2 : (0,25 - 1/6) - 1/3 = 
= 1/9 : (1/4 - 1/6) -1/3 =
= 1/9 : (3/12 - 2/12) - 1/3 =
= 1/9 : 1/12 - 1/3 =
= 1/9 * 12/1 - 1/3 =
= 4/3 - 1/3 =
= 2/3 .

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