Question

calcule o modulo do complexo z=-2raiz de 3-2i

Answer 1

Oiiiii....

$Z=a +bi \\ \\ |Z|= \sqrt{a^2+b^2} \\ \\ a=-2 \sqrt{3} \\ b=-2 \\ \\ |Z|= \sqrt{(-2 \sqrt{3})^2+(-2)^2 } \\ \\ |Z|= \sqrt{4(3)+(+4)} \\ \\ |Z|= \sqrt{12+4} \\ \\ |Z|= \sqrt{16} \\ \\ |Z|=4$