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Răspuns:

4/9; 9/25; 25/49; 4/49; 49/81; 9/100.

[tex]( \frac{2}{3}) ^{2} = \frac{4}{9} [/tex]

[tex]( \frac{3}{5} )^{2} = \frac{9}{25} [/tex]

[tex]( \frac{5}{7} )^{2} = \frac{25}{49} [/tex]

[tex]( \frac{2}{7} )^{2} = \frac{4}{49} [/tex]

[tex]( \frac{7}{9} )^{2} = \frac{49}{81} [/tex]

[tex]( \frac{3}{10} )^{2} = \frac{9}{100} [/tex]