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+// Exa 1.22
+clc;
+clear;
+close;
+// Given data
+vo= -10;// in V
+i_f= 1;// in mA
+i_f= i_f*10^-3;//in A
+// Formula vo= -i_f*Rf
+Rf= -vo/i_f;// in Ω
+// The output voltage, vo= -(v1+5*v2)       (i)
+// vo= -Rf/R1*v1 - Rf/R2*v2;                    (ii)
+// Comparing equations (i) and (2)
+R1= Rf/1;// in Ω
+R2= Rf/5;// in Ω
+disp(Rf*10^-3,"The value of Rf in kΩ is : ")
+disp(R1*10^-3,"The value of R1 in kΩ is : ")
+disp(R2*10^-3,"The value of R2 in kΩ is : ")