Question

10 elevado a 1 negativo?

Answer 1

$10^{-1} = \frac{1}{10^{1} } = \frac{1}{10}$

Answer 2

$\large\boxed{\begin{array}{l}\underline{\rm Pot\hat encia\,de\,expoente\,negativo}\\\Huge\boxed{\boxed{\boxed{\boxed{\sf\bigg(\dfrac{b}{a}\bigg)^{-n}=\bigg(\dfrac{a}{b}\bigg)^n}}}}\end{array}}$

$\large\boxed{\begin{array}{l}\sf 10^{-1}=\bigg(\dfrac{10}{1}\bigg)^{-1}=\bigg(\dfrac{1}{10}\bigg)^1=\dfrac{1}{10}\end{array}}$