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? Given the Boolean function: F(A, B, C, D) = m(0,1,4,6,7,8,9,13,14,15) 1) (2 marks/ Drive the simplified Boolean function in sum-of-products form by means of a four-variable Karnaugh map. 2) (2 marks/ Draw the logic diagram with AND-OR gates