Question

Ma ajutati si pe mine cu ex.13?

Answer 1

a) $\frac{ 2^{31} }{(2^{4})^{10} } = \frac{2^{26}}{ (2^{5})^7 } <=> \frac{2^{31}}{2^{40}} = \frac{2^{26}}{2^{35}} <=> \frac{1}{2^{9}} = \frac{1}{2^{9}}$ (A)

b) $\frac{(3^{2})^{21}}{3^{53}} = \frac{(3^{3})^{3}}{(3^{4})^{5}}$ <=> $\frac{3^{42}}{3^{53}} = \frac{3^{9}}{3^{20}}$ <=> $\frac{1}{3^{11}} = \frac{1}{3^{11}}$ (A)

Cred ca ai prins ideea. Succes!