Question

O módulo de Z = 12 + 5 i, é: * 13 √13 √34 34

Answer 1

$\Large\boxed{\begin{array}{l}\sf Z=12+5i\\\sf \rho=\sqrt{12^2+5^2}\\\sf \rho=\sqrt{144+25}\\\sf \rho=\sqrt{169}\\\sf \rho=13\end{array}}$