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diff --git a/162/CH1/EX1.12.b/example112b.sce b/162/CH1/EX1.12.b/example112b.sce
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+//Example 1.12b
+//Determine whether the system is linear or not
+clc;
+x1=[1,1,1,1]
+x2=[2,2,2,2]
+a=1
+b=1
+for n=1:length(x1)
+    x3(n)=a*x1(n)+b*x2(n)
+end
+for n=1:length(x1)
+    y1(n)=x1(n)^2
+    y2(n)=x2(n)^2
+    y3(n)=x3(n)^2
+end
+for n=1:length(y1)
+    z(n)=a*y1(n)+b*y2(n)
+end
+count=0
+for n=1:length(y1)
+    if(y3(n)==z(n))
+        count=count+1;
+     end   
+end
+if(count==length(y3))
+disp('It satisfy the superposition principle');
+disp('THE GIVEN SYSTEM IS LINEAR ');
+else
+    disp('It does not satisfy superposition principle ');
+    disp('THE GIVEN SYSTEM IS NON LINEAR');
+end
+\ No newline at end of file