Question
Evaluate using the rules of exponents.$\left(\frac{1}{9}\right)^{-2}$
Step 1
The exponent is negative, so we can change it to positive by taking the reciprocal of the base. The reciprocal of $\frac{1}{9}$ is $9/1$ or simply $9$. So, we rewrite the expression as $(9/1)^2$ or $9^2$. Show more…
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