The $$2's$$ complement representation of $${\left( { - 539} \right)_{10}}$$ in hexadecimal is

Given the following Karnaugh map, which one of the following represents the minimal Sum-Of-Products of the map?

Consider the circuit shown below. The output of a $$2:1$$ Mux is given by the function $$(ac+bc)$$

Which of the following is true?

Consider the circuit given below with initial state $${Q_0} = 1,\,\,{Q_1} = {Q_2} = 0.$$ The state of the circuit is given by the value of $$4{Q_2} + 2{Q_1} + {Q_{0.}}$$

Which one of the following is correct state sequence of the circuit?