Cześć ;-)
Obliczenia
[tex]\sqrt{\frac{1}{4}}+\sqrt{\frac{1}{16}}=\sqrt{(\frac{1}{2})^2}+\sqrt{(\frac{1}{4})^2}=\frac{1}{2}+\frac{1}{4}=\frac{2}{4}+\frac{1}{4}=\frac{3}{4}\\\\\sqrt{\frac{1}{9}}+\sqrt{\frac{1}{100}}=\sqrt{(\frac{1}{3})^2}+\sqrt{(\frac{1}{10})^2}=\frac{1}{3}+\frac{1}{10}=\frac{10}{30}+\frac{3}{30}=\frac{13}{30}[/tex]
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