Given a sequential circuit (shown in the figure below) that has two D flip-flops A and B, two inputs X and Y, and one output Z.

a) Write the logic function for the flip-flops inputs DA and DB, as a function of X, Y, A and B.

b) Write the logic function for the output Z.

c) If the present state of A and B are A = 1 and B = 0, and the circuit inputs are X = 0 and Y = 0. Then, what will be the next state values for the flip-flops A and B? What will be the value of output Z, in this case?

DA Clock DB