Question

reescribir lo siguiente sin exponentes.
$9^{-2}$

Explanation:

Step1: Apply negative exponent rule

A negative exponent means reciprocal: $a^{-n} = \frac{1}{a^n}$
So $9^{-2} = \frac{1}{9^2}$

Step2: Compute positive exponent

Calculate $9^2 = 9 \times 9 = 81$

Answer:

$\frac{1}{81}$