Question

3 elevado a -2 =
5 elevado a -3 =
(-4) elevado a -2 =
(-2) elevado a -4 =
π elevado a -3 =
(-4) elevado a -3 =

Answer 1

1°
${3}^{ - 2} = \frac{1}{3} \times \frac{1}{3} = \frac{1}{9}$

2°
${5}^{ - 3} = \frac{1}{5} \times \frac{1}{5} \times \frac{1}{5} = \frac{1}{125}$
3°
${( - 4)}^{ - 2} = \frac{1}{( - 4)} \times \frac{1}{( - 4)} = \frac{1}{16}$
4°
${( - 2)}^{ - 4} = \frac{1}{( - 2)} \times \frac{1}{( - 2)} \times \frac{1}{( - 2)} \times \frac{1}{( - 2)} = \frac{1}{16}$
5°
${\pi}^{ - 3} = \frac{1}{\pi} \times \frac{1}{\pi} \times \frac{1}{\pi} = \frac{1}{ {\pi}^{3} }$
6°
${( - 4)}^{ - 3} = \frac{1}{( - 4)} \times \frac{1}{( - 4)} \times \frac{1}{( - 4)} = \frac{1}{( - 64)}$