Question

Media geometrica a numerelor √5-1 si √5+1 este ... .(-1 si +1 nu sunt sub radical.)

Answer 1

Salut,

(√5 -- 1)(√5 + 1) = (√5)² -- 1² = 5 -- 1 = 4.

$M_{geometric\breve{a}}=\sqrt{(\sqrt5-1)(\sqrt5+1)}=\sqrt4=2.$

Green eyes.