Question

1.Calculati media geometrica a numerelor a=4+$\sqrt{x}$80 si b=4(radical5-1)
2.aratati ca numarul radical6-2 supra radical 6+2 :(radical3-radical2)la a 2-a supra 2 este numar natural.

Answer 1

Mg=√a*b
Mg=√(4+√80)*(4√5-4)
Mg=√16√5-16+4√400-4√80
Mg=√16√5-16+4*20-4*4√5
Mg=√64
Mg=8
2) √6-2/√6+2:3-2/2=
1:1/2=1*2/1=2