Răspuns :
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!
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!
Media geometrică ⇒ [tex]\sqrt{a*b}[/tex]
a) a = 2, b = 18;
[tex]\sqrt{a*b}=\sqrt{2*18}=\sqrt{36}=6.[/tex]
b) a = 3, b = 12;
[tex]\sqrt{a*b}=\sqrt{3*12}=\sqrt{36}=6.[/tex]
c) a = [tex]\frac{14}{5}[/tex], b = [tex]\frac{10}{7}[/tex];
[tex]\sqrt{a*b}=\sqrt{\frac{14}{5}*\frac{10}{7}}=\sqrt{4}=2.[/tex]
d) a = 112, b = [tex]\frac{4}{7}[/tex];
[tex]\sqrt{a*b}=\sqrt{112*\frac{4}{7}}=\sqrt{64}=8.[/tex]
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