Q$2)$ The circuit parameters for the three$-$transistor current source shown in the figure are as follows:

$C_2=I_O,V^{+}=3V$

$,V^{-}=-3V$

$,R_1=30k$

For transistors $1$ and $2$; $V_{BE1,2(ON)}=0\mathrm{.}7V$ and ${}_{1,2}=120$

For transistor $3$;$V_{BE(ON)}=0\mathrm{.}6V$ and ${}_3=80.$

Determine $I_{\text{R}\text{E}\text{F}},I_0,I_{B1},I_{B2},I_{B3},I_{C1},I_{C2}$ and $I_{E3}.$

Can you please solve on paper. It is urgent. I will thumb up