Question

Calculati media geometrica dintre 3√5 + 2 si 3√5.

Answer 1

Media geometrica a 2 numere a si b este $\sqrt{a*b}$
In cazul tau, a=$3 \sqrt{5} +2$ si b=$3 \sqrt{5}$
Mg=$\sqrt{(3 \sqrt{5}+2)*3 \sqrt{5} } = \sqrt{ \sqrt{45}+6 \sqrt{5} } = \sqrt{3 \sqrt{5}+6 \sqrt{5} } = \sqrt{9 \sqrt{5} }=3 \sqrt{ \sqrt{5} }$