Question

3-¹=

3-²=

(-3)-¹

(-3)-²

Answer 1

${3}^{ - 1} = \frac{1}{ {3}^{1} } = \frac{1}{3} \\ \\ {3}^{ - 2} = \frac{1}{ {3}^{2} } = \frac{1}{9} \\ \\ {( - 3)}^{ - 1} = \frac{1}{ { - 3}^{1} } = - \frac{1}{3} \\ \\ {( - 3)}^{ - 2} = \frac{1}{( - 3)^{2} } = \frac{1}{9}$

espero ter ajudado ;)