a) [tex] \frac{ 2^{31} }{(2^{4})^{10} } = \frac{2^{26}}{ (2^{5})^7 } <=> \frac{2^{31}}{2^{40}} = \frac{2^{26}}{2^{35}} <=> \frac{1}{2^{9}} = \frac{1}{2^{9}} [/tex] (A)
b) [tex] \frac{(3^{2})^{21}}{3^{53}} = \frac{(3^{3})^{3}}{(3^{4})^{5}} [/tex] <=> [tex] \frac{3^{42}}{3^{53}} = \frac{3^{9}}{3^{20}}[/tex] <=> [tex] \frac{1}{3^{11}} = \frac{1}{3^{11}}[/tex] (A)
Cred ca ai prins ideea. Succes!
