a) [tex](1\frac{4}{5})^2[/tex] = [tex](\frac{9}{5})^2[/tex]= [tex]\frac{81}{25}[/tex] = [tex]3\frac{6}{25}[/tex]
b) każda liczba podniesiona do potęgi 0 jest równa 1
c) [tex]-(\frac{8}{10} )^2[/tex]= [tex]-\frac{64}{100}[/tex] = [tex]-\frac{16}{25}[/tex]
d) [tex](-2\frac{1}{2} )^3[/tex] = [tex](-\frac{5}{2} )^3[/tex] = [tex]-\frac{125}{8}[/tex]= [tex]-15\frac{5}{8}[/tex]
