[tex]Forma \ generala \ a \ unui \ nr \ complex \ z \ este \ a+b\cdot i\\ \\ OBS: \ \boxed{|z|=\sqrt{a^2+b^2}}\\ \\ In \ cazul \ tau \ z=\sqrt{2}+6i \\ \\ a=\sqrt{2};~b=6\\ \\ \\ \Rightarrow |z|=\sqrt{(\sqrt{2})^2+6^2}=\sqrt{2+36}=\sqrt{38}\\ \\ \boxed{|z|=\sqrt{38}}[/tex]
