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Evalueaza-te Calculează: 16 a) 14: 21 b) 3-1- 7:21


Răspuns :

Răspuns:

[tex](\frac{14}{21} )^{7} =\frac{2}{3} =0,(6)\\\\\\3-1-(\frac{7}{21} )^{7} =3-1-\frac{1}{3} =\\\\numitor.comun-3\\\\9/3-3/3-1/3=5/3=1,(6)[/tex]