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+close();
+clear;
+clc;
+Rab = 3; //ohm
+Rbc = 6; //ohm
+Rac = 9; //ohm
+Rad = 4.5; //ohm
+Rcd = 3; //ohm
+//transforming abc network into star network
+Rbo = Rab*Rbc/(Rab+Rbc+Rac);
+Rao = Rab*Rac/(Rab+Rbc+Rac);
+Rco = Rbc*Rac/(Rab+Rbc+Rac);
+Rod1 = Rao+Rad;
+Rod2 = Rco+Rcd;
+Rod = Rod1*Rod2/(Rod1+Rod2);
+//equivalent resistance at terminals AB
+RAB = Rbo + Rod;
+mprintf("\nThe equivalent resistance at terminals AB = %d ohm",RAB); \ No newline at end of file