clc;
//Page no:2-39
//Example-2.30
Am=20;
Ac=50;
u=0.75;
fm=1;
fc=50;
//we know the equation for AM wave is Ac*[1+u*cos(2*%pi*t)]*cos(2*%pi*fc*t)
disp("s(t)=50[1+0.75*cos(2*%pi*t)]*cos(2*%pi*50*t)");