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diff --git a/2294/CH7/EX7.1.1/EX7_1_1.sce b/2294/CH7/EX7.1.1/EX7_1_1.sce
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+//Example 7.1.1
+//Find the laplace transform and Roc of the following signal
+clc;
+close;
+syms t;
+a=5;
+ x=exp(-a*t);
+b=6;c=7;
+s=b+c*%i;
+X=integrate((exp(-(a+s)*t)),'t',0,%inf);
+disp(X);
+disp(real(s));
+disp('Since real(s)>-a,so the integral converges');
+