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1. Define a deterministic finite automaton over the alphabet {a, b} which accepts the set of...

1. Define a deterministic finite automaton over the alphabet {a, b} which accepts the set of all strings that end with the substring ab or ba.

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Answer #1

A DFA or Deterministic Finite Automaton is such that for an input symbol , there is a single resultant state or say there is only transition possible.

The above mentioned question is solved in below images.

Here qo is the initial state . set of input elements is {a,b} .

Set of Final states is {q2,q4} .

Set of all possible states are {q0, q1,q2,q3,q4}.

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