Răspuns:
[tex]\sqrt{5\frac{4}{9} }=\sqrt{\frac{5*9+4}{9} }=\sqrt{\frac{49}{9}}=\frac{7}{3}=2\frac{1}{3}\\\sqrt{1\frac{24}{25} }=\sqrt{\frac{1*25+24}{25} }=\sqrt{\frac{49}{25}}=\frac{7}{5}=1\frac{2}{5}\\\\ \sqrt{(+2\frac{1}{2})^{2} }=|2\frac{1}{2}|=2\frac{1}{2}\\\\\sqrt{(-3\frac{1}{7})^{2} }=|-3\frac{1}{7}|=3\frac{1}{7}\\[/tex]
Explicație pas cu pas:
