Odpowiedź :
[tex](5^7 )^{-1} *\frac{5^2}{(5^{-2})^4 } :5^0 =5^{-7}*\frac{5^2}{5^{-8}}:1= 5^ {-7}*5^{2-(-8)}*1= 5^{-7}*5^{2+8}=\\\\=5^{-7}*5^{10} =5^{-7+10}=5^3=125\\\\odp.\ \ C .\ \ 125[/tex]
[tex](5^7 )^{-1} *\frac{5^2}{(5^{-2})^4 } :5^0 =5^{-7}*\frac{5^2}{5^{-8}}:1= 5^ {-7}*5^{2-(-8)}*1= 5^{-7}*5^{2+8}=\\\\=5^{-7}*5^{10} =5^{-7+10}=5^3=125\\\\odp.\ \ C .\ \ 125[/tex]