Question

Fara dau coroana 5 *****​

Answer 1

a) radical 2*18= radical 36=6
b) rad 3*12= rad 36=6
c) rad 14/5*10/7= rad 4= 2
d) rad 112*4/7= rad 64=8

Bafta!

Answer 2

Media geometrică ⇒ $\sqrt{a*b}$

a) a = 2, b = 18;

$\sqrt{a*b}=\sqrt{2*18}=\sqrt{36}=6.$

b) a = 3, b = 12;

$\sqrt{a*b}=\sqrt{3*12}=\sqrt{36}=6.$

c) a = $\frac{14}{5}$, b = $\frac{10}{7}$;

$\sqrt{a*b}=\sqrt{\frac{14}{5}*\frac{10}{7}}=\sqrt{4}=2.$

d) a = 112, b = $\frac{4}{7}$;

$\sqrt{a*b}=\sqrt{112*\frac{4}{7}}=\sqrt{64}=8.$

@robertinnifd