Question #4 (6 mark): Given a sequential circuit (shown in the figure below) that has two T flip-flops A and B, two inputs X and Y, and one output Z. a) [2 marks] Write the logic function for the flip-flops inputs TA and TB, as a function of X, Y, A and B. b) [1 mark] Write the logic function for the output Z as a function of A and B. c) [3 marks) If the present state of A and B are A = 0 and B = 0, and the circuit inputs are X = 1 and Y = 1. 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