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Cel mai inteligent răspuns!
2014-01-28T17:50:40+02:00

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!
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