Question

Media aritmetica a nr. a si b, stiind ca a= 5/3-3/7 si b=1/3+3/7

Answer 1

[tex]a=\dfrac{5}{3}-\dfrac{3}{7}\\ b=\dfrac{1}{3}+\dfrac{3}{7}\\ m_a=\dfrac{a+b}{2}\\ m_a=\dfrac{\dfrac{5}{3}-\dfrac{3}{7}+\dfrac{1}{3}+\dfrac{3}{7}}{2}\\ m_a=\dfrac{\dfrac{6}{3}}{2}\\ \\ m_a=\dfrac{2}{2}=\boxed{1}[/tex]