Question

sendo z1= 3+2i e z2= 4+i calcule |z1|^2

Answer 1

$z_1 = 3+2i\\\\ |z_1| = \sqrt{3^2+2^2} = \sqrt{13} \\\\\ |z_1|^2 = (\sqrt{13}) ^2 = \boxed{13}$