Problem $3(30$ pts$.)$

The circuit below consists of two$-$stage identical BJT amplifiers connected in cascade.

$($a$)$ Draw the DC equivalent circuit and determine the quiescent values $(1$ ma and $V_{\text{C}\text{E}\text{Q}})$ for each transistor. Fill in the tahlo $m$

$($d$)$ Determine the input impedance $(R_{in1})$

$($e$)$ Determine the open circuit voltage gains