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Exercițiul 5, sup c,e

Exercițiul 5 Sup Ce class=

Răspuns :

calculecalculez si iar dupa le scri

Răspuns:

[tex]c.)1+1+\frac{3^2}{4^2} -\frac{3^2}{4^2}=2+9/16-9/16=2\\\\\\d.)-\frac{14}{21} -1/9+13/6*18/26=\\\\-2/3-1/9+3/2=\\\\numitor.comun-18\\\\-12/18-2/18+27/18=13/18[/tex]