Question: what is the regular expression of this DFA : + dfa M Q = { q 1 , q 2 , q 3 ,

what is the regular expression of this DFA ":+ dfa M
Q={q1,q2,q3,q4}
S={a,b}
d(q1,a)=q1
d(q1,b)=q3
d(q3,a)=q3
d(q3,b)=q2
d(q2,b)=q4
d(q4,b)=q4
d(q2,a)=q1
d(q4,a)=q1
q0=q1
F={q3,q2}
done."

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