function zad7

close all;
clear all;
E=12/sqrt(2)*exp(j*3*pi/4);
w=2;
r1=2;
r2=1/2;
r3=1;
c=1/2;
l1=1/6;
l2=1;

z1=r3;
y2=j*w*l1+1/z1;
z3=r2+j*w*c;
y4=1/z3+j*w*l2;
z=r1+1/y4+1/y2;
I=E/z;

is=abs(I)
im=is*sqrt(2)
fir=angle(I)
fid=fir*180/pi
I