Odpowiedź :
Zad.3.
B
Zad.8.
e)[tex]\sqrt{3*21*7} =\sqrt{21*21}=21[/tex]
d)[tex]\sqrt{8*162}=\sqrt{2*4*9*18} =\sqrt{36*36} =36[/tex]
f)[tex]\sqrt{27000*30} =\sqrt{27*3*10^{4} } =\sqrt{81*10^{4} } =9*100=900[/tex]
Zad.3.
B
Zad.8.
e)[tex]\sqrt{3*21*7} =\sqrt{21*21}=21[/tex]
d)[tex]\sqrt{8*162}=\sqrt{2*4*9*18} =\sqrt{36*36} =36[/tex]
f)[tex]\sqrt{27000*30} =\sqrt{27*3*10^{4} } =\sqrt{81*10^{4} } =9*100=900[/tex]