Answer:
[tex]3^{-2}=\left ( \frac{1}{3} \right )^2=\frac{1}{9}[/tex]
Step-by-step explanation:
According to the Exponents Law. Whenever we have some number whose exponent is a negative one:
[tex]b^{-2}=\left ( \frac{1}{b} \right )^{2}=\frac{1}{b^{2}}[/tex]
The outcome is its reciprocal raised to its positive power.
