Problem
Linear Combination (Summing) Op Amp Circuit
For the Op Amp circuit shown below,
(1) Write the equation of the output voltage Vout in terms of input voltages (V1 and V2).
(2) Apply a negative DC voltage to one input (V1) and a 1kHz AC sine wave to the other input (V2); write the equation of Vout in terms of the input voltages.