Let R = 10 kΩ in the differential amplifier in Figure P9.63. Determine the voltages υX ,υY...

Let R = 10 kΩ in the differential amplifier in Figure P9.63. Determine the voltages υX ,υY υO and the currents i1 ,i2 ,i3 ,i4 for input voltages of (a) υ1 , = 1.80 V, υ2 = 1.40 V; (b) υ1 , = 3.20 V, υ 2 = 3.60 V; and (c) υ1 = −1.20 V, υ2 ‒1.35 V.