Question: Verify that the circuit in Figure 34.8 (b) is unsatisfiable. Figure 34.8: Two instances of the circuit-satisfiability problem.(a) The assignment (xi = 1.X_2 = 1.X_3

Verify that the circuit in Figure 34.8 (b) is unsatisfiable. Figure 34.8: Two instances of the circuit-satisfiability problem.(a) The assignment (xi = 1.X_2 = 1.X_3 = 0) to the inputs of this circuit causes the output of the circuit to be 1. The circuit is therefore satisfiable. (b) No assignment to the inputs of this circuit can cause the output of the circuit to be 1. The circuit is therefore unsatisfiable
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