Neglect base currents in the circuit in Figure.
(a) Determine the value of RC2 such that the minimum value of vO2 = 0.
(b) Determine the value of RC1 such that vO1 = 1 V when vI = 1 V.
(c) Determine the value of vI so iC2 = 0.40 mA and iC1 = 0.10 mA.