Question: 2 . Let Sigma = { a , b } . ( i ) Consider the language S where S = { aa ,

2. Let \Sigma ={a, b}.
(i) Consider the language S where S ={aa, ab, ba, bb}. Give another description of this language.
1. Strings of any length containing only "a" and "b".
2. The empty string (\Lambda ) and all even-length words consisting of "a"s and "b"s.
3. Words composed of alternating "a"s and "b"s

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