👤
Andrei2k18
a fost răspuns

Aflati z daca z+4i=2/3z

Răspuns :

Cataclyzmic
[tex]z=a+bi[/tex]
[tex]a+bi+4i= \frac{2}{3}*(a+bi) [/tex]
[tex]3a+3bi+12i=2a+2bi[/tex]
[tex]3a=2a \rightarrow a=0[/tex]
[tex]3b+12=2b \rightarrow b=-12[/tex]
[tex]z=a+bi=-12i[/tex]