The figure shows a current$-$mirror$-$loaded differential amplifier to which the series$-$shunt feedback is applied through the voltage divider $($R$1,$ R$2)$ where R$1+$R$2=470$k$.$ All MOSFETs have $|$VA$|=6$V and are operational at $|$VOV $|=0\mathrm{.}15$V$.$ The input signal source has a zero dc component.

$($a$)$ Isolate and draw the feedback network.

$($b$)$ Find an expression for

$($c$)$ Draw the A circuit and find a numerical value for A and $.$

$($d$)$ Find the values of R$1$ and R$2$ that result in a non$-$ideal closed$-$loop gain of exactly $6$ V$/$V$.$

$($e$)$ Find Rout. Figure $11\mathrm{.}4\mathrm{.}1$