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Care este cubul nr 1,(3) repede dau coroana

Răspuns :

 [tex](1)...\;\;1,(3)=\frac{13-1}{9}=\frac{12^{(3}}{9}=4/3\;;\;\\ (2)...\;\;\;(\frac{4}{3})^3=64/27\,=\,...\, =\;2,(370)[/tex]