(a) Formulate node-voltage equations for the circuit in Figure.
(b) Use MATLAB to find symbolic expressions for the node voltages in terms of the parameters in the\ circuit.
(c) Find numeric values for vA, vB, and vC when R1 = 1 kΩ, R2 = 1:5 kΩ, R3 = 2:2 kΩ, R4 = 3:3 kΩ, iS1 = 1 mA, and iS2 = 3 mA.
(d) Use Multisim to verify your solution to part (c) is correct.