Question

Calcule As Potências E Raízes Abaixo :​

Answer 1

$\frac{1}{ {3}^{2} } \times \frac{1}{3} = \frac{1}{9}$

Answer 2

Resposta:

$a)~~~3^{-2}={1\over3^2}={1\over9}\\ \\ b)~~~9^{1\over2}=(3^2)^{1\over2}=3^{{2\over2}}=3^1=3\\ ou\\~~~~~~~~ 9^{1\over2}=\sqrt{9} =3$

-----------------------------

$c)~~~64^{1\over3}=(2^6)^{1\over3}={2^{6\over3}}=2^2=4\\ \\ ou\\ \\ \sqrt[3]{64} =\sqrt[3]{2^6} =2^2=4$

-------------------------------------------

$d)\\ \sqrt[5]{32} =\sqrt[5]{2^5} =2\\ \\ e)\\ \sqrt[3]{216} =\sqrt[3]{2^3.3^3} =2\times3=6$