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diff --git a/1409/CH2/EX2.30/2_30.sce b/1409/CH2/EX2.30/2_30.sce
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+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)");