3. (30 points) For the circuit in Figure below, the transistor parameters are ẞ = 120, VBE (on) = 0.7 V, and VA = 80 V. The circuit parameters are Vcc = 3.3 V, VBB = 1.10 V, Rc = 4 k2, and RB = 110 k. (a) Determine the hybrid-л parameters (Ico, gm,rx, and ro). (b) Find the small-signal voltage gain A₁ = Vo/Vs. (c) If the time-varying output signal is given by Vo = 0.5 sin(100t) V, what is Vs(t)? ic Vcc Rc US RB www iB + VBE + UCE VBB