a)
[tex] \frac{ {2}^{5} \times {2}^{3} }{ {2}^{8} } = \frac{ {2}^{8} }{ {2}^{8} } = 1[/tex]
b)
[tex] \frac{ {3}^{4} \times {3}^{3} }{ {3}^{2} \times {3}^{0} } = \frac{ {3}^{7} }{ {3}^{2} } = {3}^{5} = 243[/tex]
c)
[tex] \frac{ {9}^{5} \times {9}^{2} }{9 \times {9}^{4} } = \frac{ {9}^{7} }{ {9}^{5} } = {9}^{2} = 81[/tex]
d)
[tex] \frac{ {5}^{11} }{ {5}^{6} \times {5}^{6} } = \frac{ {5}^{11} }{ {5}^{12} } = \frac{1}{5} [/tex]
