Question

Estou com dúvidas sobre essa potenciação : ( 3 ) elevado a - 4

Answer 1

Resposta:

(3)⁻⁴

3⁻⁴

1/3⁴

1/81

Answer 2

$\large\boxed{\begin{array}{l}\underline{\sf Pot\hat encia\,de\,expoente\,negativo}\\\huge\boxed{\boxed{\boxed{\boxed{\sf\bigg(\dfrac{b}{a}\!\bigg)^{-n}\!\!=\bigg(\dfrac{a}{b}\bigg)^n}}}}\\\bf regra:~\rm inverte\,a\,base\,e\,muda\,o\,sinal\,do\,expoente.\end{array}}$

$\large\boxed{\begin{array}{l}\sf3^{-4}=\bigg(\dfrac{3}{1}\bigg)^{-4}=\bigg(\dfrac{1}{3}\bigg)^4=\dfrac{1}{81}\end{array}}$