Problem 1 Write the truth table for the circuit shown below. Problem 2 Draw a circuit for each of the Boolean equations below: a) x = A*B*C+-A*C b) y = (Q+R)*(-Q+-R) c) z = ((B+~C)*(-B+C))+-(~A+B+~C) Problem 3 Write a truth table for the 1-bit ALU shown below 0