Resposta:
[tex] { - 10}^{ - 4} = - \frac{ {1}^{4} }{ {10}^{4} } = - \frac{1}{10000} [/tex]
1/10000
[tex] - 10 {}^{4} = \\ - 10 {}^{4} \\ \frac{1}{10 {}^{4} } \\ 10 {}^{4} \\ 10 \times 10\times 10 \times 10 \\ 10000 \\ \frac{1}{10 {}^{4} } \\ - \frac{1}{10000} \\resposta \\ - \frac{1}{10000} \\ [/tex]
