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[25la puterea -2×125la puterea 2 :5 la puterea -3 ] totul la -1 × 25la puterea 3

Răspuns :

[tex]\frac{\left(25^{-2\cdot \:125}\right)^2}{5^{-3}}=\frac{\left(25^{-250}\right)^2}{5^{-3}}=\frac{\frac{1}{25^{500}}}{5^{-3}}=\frac{\frac{1}{25^{500}}}{5^{-3}}=\frac{1}{5^{997}}[/tex]