>> Answer
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[tex] \: [/tex]
[tex] {4}^{ - 1} = ...[/tex]
[tex] = \frac{1}{ {4}^{1} } [/tex]
[tex] = \bold{ \frac{1}{4}} [/tex]
.
[tex] {2}^{ - 3} = ...[/tex]
[tex] = \frac{1}{ {2}^{3} } [/tex]
[tex] = \frac{1}{2 \times 2 \times 2} [/tex]
[tex] = \bold{ \frac{1}{8}} [/tex]
.
[tex] {3}^{ - 4} = ...[/tex]
[tex] = \frac{1}{ { 3}^{4} } [/tex]
[tex] = \frac{1}{3 \times 3 \times 3 \times 3} [/tex]
[tex] = \bold{ \frac{1}{81}} [/tex]
