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diff --git a/3673/CH7/EX7.a.2/Example_a_7_2.sce b/3673/CH7/EX7.a.2/Example_a_7_2.sce
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+//Example_a_7_2 page no:270
+clc;
+Rab=3+(4*%i);
+Rabmag=sqrt(real(Rab)^2+imag(Rab)^2);
+Rabang=atand(imag(Rab)/real(Rab));
+Rbc=%i*4;
+Vmag=100;
+Vang=-45;
+Vreal=Vmag*cosd(Vang);
+Vimag=Vmag*sind(Vang);
+V=Vreal+(%i*Vimag);
+A=[(3+(%i*8)),(-%i*4)
+    (-%i*4),(%i*2)];
+B=[V,
+    0];
+X=inv(A)*B;
+X1mag=sqrt(real(X(1))^2+imag(X(1))^2);
+X1ang=-atand(imag(X(1))/real(X(1)));
+X2mag=sqrt(real(X(2))^2+imag(X(2))^2);
+X2ang=atand(imag(X(2))/real(X(2)));
+//calculating the voltages across ab
+Vabmag=Rabmag*X1mag;
+Vabang=Rabang+X1ang;
+disp(Vabmag,"the magnitude of voltage across ab is (in V)");
+disp(Vabang,"the angle of voltage across ab is (in degree)");
+//calculating the voltages across bc
+Vbc=(X(2)-X(1))*Rbc;
+Vbcmag=sqrt(real(Vbc)^2+imag(Vbc)^2);
+Vbcang=atand(imag(Vbc)/real(-Vbc));
+disp(Vbcmag,"the magnitude of voltage across bc is (in V)");
+disp(Vbcang,"the angle of voltage across bc is (in degree)");
+