Răspuns:
[tex]( \frac{5}{9})^{25} \times (\frac{5}{9}) ^{22} \div ( \frac{5}{9})^{45} [/tex]
[tex]( \frac{5}{9})^{47} \div (\frac{5}{9} ) ^{45} = ( \frac{5}{9} )^{2} [/tex]
#Cuplă
