Problem $3(10$ pts$)$ Op$-$Amps $-($Total of $4$ questions$)$

Questions $1$ and $2$

Given the following op$-$amp circuits, determine the following for each circuit:

$($a$)I_{in}$

$($b$)I_f$

$($c$)V_{\text{o}\text{u}\text{t}}$

$($d$)A_{cl}$

Circuit $1$