Question

Express the following as a rational number of the form $$\frac{p}{q},$$ where p and q are integers and q ≠ 0. (−4)⁻²

Answer 1

We know that

$$a^{-n}=\frac{1}{a^n}$$

${\displaystyle {(-4)}^{-2}=\frac{1}{{(-4)}^2}=\frac{1}{16}}$