a) [tex]3^{7} :3^{5} = 3^{7-5} = 3^{2} = 9[/tex]
b) [tex](-1)^{8} : (-1)^{6} =(-1)^{8-6} = (-1)^{2} = +1[/tex]
c) [tex](\frac{2}{3} )^{6} :(\frac{2}{3} )^{1}= (\frac{2}{3} )^{6-1}= (\frac{2}{3} )^{5}= (\frac{2^{5} }{3^{5} } )= \frac{32}{243}[/tex]
d)
[tex]2^{10} = 1024\\\\1024 : 2 = 512[/tex]
e) [tex](-2,5)^{5} : (-2,5)^{2} = (-2,5)^{5-2}= (-2,5)^{3}= - 15,625[/tex]
f) [tex]a^{9} : a^{8}= a^{9-8}= a^{1}= a[/tex]
g) [tex]1^{8}:1^{2} = ^{8-2}= 1^{6}= 1[/tex]
H) não consegui ler
