Questão 179979

Considere as igualdades e marque a opção correta.

I) \(\left|a+b\right|=\left|a\right|+\left|b\right|\)

II) \(\frac{1}{\left(x-a\right)^{2}}\)\(=\frac{1}{x^2}-\frac{1}{a^2}\)

III)\(x-2=\sqrt[3]{x^3-8}\)

IV) \(\sqrt[3]{x^2}=x^{\frac{3}{2}}\)