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diff --git a/761/CH1/EX1.12/1_12.sce b/761/CH1/EX1.12/1_12.sce
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+clc;
+//page no 29
+//prob no 1.12
+//Given: 
+A1=10;A2=25;A3=30;NF1=2;NF2=4;NF3=5;
+At=A1*A2*A3;
+disp(At,'The power gain is');
+// The noise figure is given as 
+NFt=NF1+((NF2-1)/A1) + ((NF3-1)/(A1*A2));
+disp(NFt,'The noise figure is');
+// Noise temp can be found as 
+Teq=290*(NFt-1);
+disp('K',Teq,'The noise temperature is');
+\ No newline at end of file