|Z| = [tex]\sqrt{a^{2} + b^{2} }[/tex] (fórmula)

a) Z=4+3i

a=4 b=3

|Z| = [tex]\sqrt{4^{2} + 3^{2} }[/tex]

|Z| = [tex]\sqrt{16 + 9}[/tex]

|Z| = [tex]\sqrt{25}[/tex]

|Z| = 5

b) Z=2i

a= 0 b=2

|Z| = [tex]\sqrt{ 0^{2} + 2^{2} }[/tex]

|Z| = [tex]\sqrt{0 + 4}[/tex]

|Z| = [tex]\sqrt{4}[/tex]

|Z| = 2

c) Z=1

a=1 b=0

|Z| = [tex]\sqrt{1^{2} + 0^{2} }[/tex]

|Z| = [tex]\sqrt{1 + 0}[/tex]

|Z| = [tex]\sqrt{1}[/tex]