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4 supra 5 totul la puterea 0 +4supra 5 totul la puterea -1 -radical 25supra 26

Răspuns :

[tex](\frac{4}{5})^0+(\frac{4}{5})^{-1}- \frac{ \sqrt{25} }{26} =1+ \frac{5}{4} - \frac{5}{26}= \frac{104+130-20}{104}= \frac{214}{104}= \frac{107}{52} [/tex]
[tex](\frac{1}{\frac{4}{5}})=1:\frac{4}{5}=1* \frac{5}{4} =\frac{5}{4} [/tex]