Question

Media aritmetica a numerelor a si b . a=5 supra 3 minus 3 supra 7 b=1 supra 3 + 3 supra 7

Answer 1

 [tex]m_a=\frac{a+b}{2} = ?\\ a=\frac{5}{3}-\frac{3}{7}=\frac{35-9}{21}=26/21;\\ b=\frac{1}{3}+\frac{3}{7}=\frac{7+9}{21}=16/21;\\ \Rightarrow\;m_a=(26/21+16/21):2=42/21:2=2:2=1[/tex]