Răspuns :

Bencheasabina97id

Răspuns:

probabil media aritmetica si media geometrica

ma=(2+18):2=20:2=10

mg=rad(2×18)=rad(36)=6

ma=(2+rad3+2-rad3):2=4:2=2

mg=rad((2+rad3)(2-rad3))= rad(2²-3)=rad1=1

Targoviste44id

[tex]\it a)\ \ m_a=\dfrac{2+18}{2}=\dfrac{20}{2}=10\\ \\ \\ m_g=\sqrt{2\cdot18}=\sqrt{36}=6\\ \\ \\ b)\ \ m_a=\dfrac{2+\sqrt3+2-\sqrt3}{2}=\dfrac{4}{2}=2\\ \\ \\ m_g=\sqrt{(2+\sqrt3)(2-\sqrt3)}=\sqrt{2^2-(\sqrt3)^2}=\sqrt{4-3}=\sqrt1=1[/tex]