$10\mathrm{.}38.$ A differential amplifier connected in the circuit in Fig. P$10\mathrm{.}38$ has the parameters listed below with $R_{\text{I}}=5k$ and $R_L=1k.($a$)$ Find the overall voltage gain $A_v,$ current gain $A_i,$ and power gain $A_P$ for the amplifier, and express the results in dB $.$