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Obliczenia
[tex]\sqrt{4^4}=\sqrt{4^2\cdot4^2}=\sqrt{4^2}\cdot\sqrt{4^2}=4\cdot4=16\\\\\sqrt{5^4\cdot2^2}=\sqrt{5^4}\cdot\sqrt{2^2}=5^2\cdot2=25\cdot2=50\\\\\sqrt{3\cdot21\cdot7}=\sqrt{21\cdot21}=\sqrt{21^2}=21\\\\\sqrt{22 \ 500}=\sqrt{150^2}=150\\\\\sqrt{12,25}=\sqrt{12\frac{1}{4}}=\sqrt{\frac{49}{4}}=\frac{\sqrt{49}}{\sqrt4}=\frac{7}{2}=3,5\\\\\sqrt{\frac{12}{75}}=\sqrt{\frac{4}{25}}=\frac{\sqrt4}{\sqrt{25}}=\frac{2}{5}\\\\\sqrt{7\frac{9}{16}}=\sqrt{\frac{121}{16}}=\frac{\sqrt{121}}{\sqrt{16}}=\frac{11}{4}=2,75[/tex]
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