L i m i t A → ∞ : {\displaystyle Limit\ A\ \to \infty :}
X 0 = 1 β X s ⇒ V 0 = R 1 + R 2 R 1 V i n {\displaystyle X_{0}\ ={\frac {1}{\beta }}X_{s}\ \Rightarrow V_{0}={\frac {R_{1}+R_{2}}{R_{1}}}V_{in}}
X i = 0 {\displaystyle X_{i}\ =0}
Drawing
V i n = V 0 ( R 1 R 1 + R 2 ) {\displaystyle V_{in}\ =V_{0}({\frac {R_{1}}{R_{1}+R_{2}}})}
