Evan Martin Op-Amp Circuit (1) (1)

KCL(V1): i1= (V1/R3)+((V1-Vo)/R2) V1(1/R2 + 1/R3)-(Vo/R2)=i1 V1(5/6)-(Vo/3)=1A KCL(V'2): (V'2/R4) + ((V'2-V1)/R5)=0 V'2(1/R4 + 1/R5)- Vo/R5 V'2(1/4+1/5)-Vo/5=0 (9/20)V'2=2/5 V'2=8/9 V'2=V1 V1=8/9 Vo/3=(5/6)V1-1 Vo=(5/2)(8/9)-3 Vo=-7/9V I2=V2/R5 I2=2/5=.4A Rin1=V1/I1 Rin1=8/9 OHM Rin2=V2/I2 Rin2=(8/9)/(.4)=2.22OHM Rout=Vx/Ix KVL(C): -Vx+3Ix+(10/7)Ix=0 31/7=Vx/Ix Rout=31/7=4.43