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va rog.!!!!! multtt ​

Va Rog Multtt class=

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Răspuns:

Explicație pas cu pas:

Vezi imaginea DARIUSBARBU

[tex]\it b)\ \ =\dfrac{-10+11-7}{9}=\dfrac{-6^{(3}}{9}=-\dfrac{2}{3}\\ \\ \\ c)\ \ =(\dfrac{4}{15}-\dfrac{3}{5})+(\dfrac{1}{2}-\dfrac{5}{6})=\dfrac{-5}{15}-\dfrac{2}{6}=-\dfrac{1}{3}-\dfrac{1}{3}=-\dfrac{2}{3}[/tex]