Question: A fundamental-mode circuit with two inputs, x, and x2, and two outputs, z, and xi, is required. The circuit operates so that xi (i = 1 or 2) takes on the value of 1 if and only if x, was the input that changed last. Assume that z, = zi = 0 to start with at x, = x2 = 0. Draw the primitive flow table and reduce it.