The instrumentation amplifier in Figure 9.26 has the same circuit parameters and input voltages as given in Problem 9.67, except that \(R_{1}\) is replaced by a fixed resistance \(R_{1 f}\) in series with a potentiometer, as shown in Figure 9.28. Determine the values of \(R_{1 f}\) and the potentiometer resistance if the magnitude of the output has a minimum value of \(\left|v_{O}\right|=0.5 \mathrm{~V}\) and a maximum value of \(\left|v_{O}\right|=8 \mathrm{~V}\).

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