Zadanie 1
a) \sqrt{225}=\sqrt{15^2}=15
\sqrt{144}=\sqrt{12^2}=12
\sqrt{10000}=\sqrt{100^2}=100
b)
\sqrt{1\frac{7}{9}}=\sqrt{\frac{16}{9}}=\sqrt{(\frac{4}{3})^2}=\frac{4}{3}=1\frac{1}{3}
\sqrt{2\frac{14}{25}}=\sqrt{\frac{64}{25}}=\sqrt{(\frac{8}{5})^2}=\frac{8}{5}=1\frac{3}{5}
\sqrt{1\frac{48}{121}}=\sqrt{\frac{169}{121}}=\sqrt{(\frac{13}{11})^2}=\frac{13}{11}
c)
\sqrt{\frac{3}{48}}=\sqrt{\frac{1}{16}}=\sqrt{(\frac{1}{4})^2}=\frac{1}{4}
\sqrt{\frac{8}{50}}=\sqrt{\frac{4}{25}}=\sqrt{(\frac{2}{5})^2}=\frac{2}{5}
\sqrt{\frac{20}{45}}=\sqrt{\frac{4}{9}}=\sqrt{(\frac{2}{3})^2}=\frac{2}{3}
d)
\sqrt{0,0004}=\sqrt{0,02^2}=0,02
\sqrt{1,69}=\sqrt{1,3^2}=1,3
\sqrt{1,21}=\sqrt{1,1^2}=1,1