Question

Calculati media aritmetică a numerelor reale x=2(4-radical 7)si y=2radical 7
Va rog eplicatim cum ati procedat

Answer 1

Vezi http://brainly.ro/tema/1417788

Answer 2

[tex]m_a=\frac{x+y}{2}\\ m_a=\frac{2(4-\sqrt7)+2\sqrt7}{2}\\ m_a=\frac{2(4-\sqrt7+\sqrt7)}{2}\\ m_a=4-\sqrt7+\sqrt7=4[/tex]