Răspuns:
Explicație pas cu pas:
Exercițiul 2) este in imagine
Exercițiul 3)
[tex]\bf a)~~\dfrac{7}{8}+\dfrac{3^{(3}}{6}= \dfrac{7}{8}+\dfrac{^{4)}1~}{2}=\dfrac{7+4}{8}=\red{\dfrac{11}{8} }[/tex]
[tex]\bf b)~~\dfrac{5^{(3}}{3}-\dfrac{4}{9}= \dfrac{15-4}{8}=\red{\dfrac{11}{9} }[/tex]
[tex]\bf c)~~\dfrac{\not8}{\not9}\cdot\dfrac{\not3}{\not4}= \dfrac{2}{3}\cdot\dfrac{1}{1}=\red{\dfrac{2}{3} }[/tex]
[tex]\bf d)~~\bigg(\dfrac{3}{4}\bigg)^3=\dfrac{3^{3}}{4^{3}}= \red{\dfrac{27}{64} }[/tex]
