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Scrieti urmatorul numar rational ca putere cu baza 1/2:
a)0,0625


Răspuns :

    
[tex]0,0625 = \frac{625}{10000}= \frac{ 5^{4} }{ 10^{4}}= \frac{ 5^{4} }{ (2*5)^{4}}= \frac{ 5^{4} }{ 2^{4}*5^{4}}= \frac{ 1 }{ 2^{4}}= ( \frac{1}{2} )^{4} [/tex]