Question

Daca a =3+√2 si b =3-√2, atunci media aritmetica a numerelor a si b, este..

Answer 1

$\displaystyle a=3+ \sqrt{2} \\ b=3- \sqrt{2} \\ m_a= \frac{a+b}{2} = \frac{3+ \sqrt{2}+3- \sqrt{2} }{2} = \frac{6}{2} =3$