Question

gente me ajudaaaaa pfv responder as 4 perguntas

Answer 1

1)

${3}^{10} \times {3}^{ - 12} = {3}^{ - 2}$

2)
$\frac{ {4}^{ - 10} }{ {1}^{3} } = \frac{ {4}^{ - 10} }{1} = {4}^{ - 10}$
3)
$\frac{ \frac{1}{ {5}^{2} } \times \frac{1}{ {5}^{3} } }{ \frac{1}{ {5}^{10} \ } \times {5}^{8} } = \frac{ \frac{1}{ {5}^{5} } }{ \frac{{5}^{8}}{ {5}^{10} } } = \frac{1}{ {5}^{5} } \times \frac{ {5}^{10} }{ {5}^{8} } = \frac{ {5}^{10} }{ {5}^{13} } =$
${5}^{10} \times {5}^{ - 13} = {5}^{ - 3}$

4)
$\frac{ {2}^{4} \times \frac{1}{ {2}^{3} } }{ {3}^{6} \times \frac{1}{ {3}^{4} } } = \frac{ \frac{ {2}^{4} }{ {2}^{3} } }{ \frac{ {3}^{6} }{ {3}^{4} } } = \frac{ {2}^{1} }{ {3}^{2} } = \frac{2}{9}$