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matematică clasa a 5-aRidicarea la putere a unei fractii ordinare
( \frac{11}{9} ) {}^{10} \div ( \frac{11}{9} ) {}^{7} =(​9​​11​​)​10​​÷(​9​​11​​)​7​​=


Răspuns :

(11/9)^10 : (11/9)^7 =

= (11/9)^(10-7) =

= (11/9)^3 =

= 1331/729