= 42, 2. Consider the DFA M = (Q, 2,8,91, F) where Q = {91, 92, 93, 94}, { = {a,b}, F = {q4} and 8(91, a) 8(92,6) 8(93, a) 8(93, b) 93, = 94, = 91. Convert this DFA to a regular expression. You only need to calculate sub-expressions if it is necessary. Also, simplify each subexpression using any of the following laws: 1) ( + R)* = R*, 2) S R* = R* if L(S) C L(R*) and E S, and 3) S+R= R if L(S) CL(R)