Răspuns:
Ex 2.
[tex]a)( \frac{4}{5} )^{2} = \frac{16}{25} \\ \\b)( \frac{4}{5} )^{3} = \frac{64}{125} \\ \\ c)( \frac{2}{7} )^{2} = \frac{4}{49} \\ \\ d)( \frac{5}{6} )^{2} = \frac{25}{36} [/tex]
Ex. 3
[tex]a)( \frac{3}{5} ) ^{2} = \frac{9}{25} \\ \\ b)( \frac{6}{7} ) ^{2} = \frac{36}{49} \\ \\ c)( \frac{9}{8} ) ^{2} = \frac{81}{64} \\ \\ d)( \frac{11}{6} ) ^{2} = \frac{121}{36} \\ \\ e)( \frac{4}{13} ) ^{2} = \frac{16}{169} \\ \\ f)( \frac{7}{10} ) ^{2} = \frac{49}{100} \\ \\ g)( \frac{12}{13} ) ^{2} = \frac{144}{169} \\ \\ h)( \frac{15}{16}) ^{2} = \frac{225}{256} [/tex]
