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+
+                     // Example  9.1
+
+                    // Given v= 20 sinwt
+Q=asind(10/20);     // Angle 
+disp('(a) The Angle at which (v=10v) is = '+string(Q)+' Digree');
+disp('(b.1) The maximum value is (Vm)= 20 Volt');
+disp('(b.2) This Occurs twice in acycle i.e at( wt = 90 or 270)');
+   
+   
+   
+          // p 305       9.1