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+// Exa 4.7
+
+clc;
+clear;
+
+// Given
+
+// Two sinusoidal voltage signals are applied to vertical and horizontal plates of CRO
+
+// Solution
+printf('Theta = asin(dvo/DV');
+// Referring fig(a) 
+Theta_a = asind(0) ; // dvo = 0
+printf(' Theta for trace shown in fig(a) = %d degrees\n',Theta_a);
+// Referring fig(b) 
+Theta_b = asind(3/6) ; // dvo = 3 and DV =6
+printf(' Theta for trace shown in fig(b) = %d degrees\n',Theta_b);
+// Referring fig(c) 
+Theta_c = asind(1/1) ; // dvo = DV = 1
+printf(' Theta for trace shown in fig(c) = %d degrees\n',Theta_c);