Assume that the ideal op amp in the circuit seen in Fig. P5.38 is operating in its linea...

Assume that the ideal op amp in the circuit seen in Fig. P5.38 is operating in its linear region.

a) Show that v_o=[(R₁ +R₂)/R₁]v_s.

b) What happens if

c) Explain why this circuit is referred to as a voltage follower when R₁ = ∞ and R₂ = 0.