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+// Exa 3.4
+clc;
+clear;
+close;
+format('v',8)
+// Given data
+P_ZM = 1500;// in mW
+Deratingfactor = 3.33;// in mW
+T1 = 85;// in degree C
+T2 = 60;// in degree C
+total = Deratingfactor*(T1-T2);// total derating factor in mW
+// The maximum power dissipation 
+P_ZM = P_ZM - total;// in mW
+disp(P_ZM,"The maximum power dissipation in mW is");