Consider the following sequential circuit.
Which of the following is/are true regarding the state equations of A and B?
1
\(A\;\left( {t + 1} \right) = \bar A\;\bar B + AB + \bar Ax\)
2
\(B\left( {t + 1} \right) = Bx + A\bar Bx + \bar AB\bar x\)
3
\(A\left( {t + 1} \right) = \bar AB + A\;\bar B + Ax\)
4
\(B\left( {t + 1} \right) = \bar B\bar x + ABx + \bar AB\bar x\)