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2. (Apts) For each of the following regular expressions over = {a,b), give one string that is in the language and one string that is

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2. (Apts) For each of the following regular expressions over = {a,b), give one string that is in the language and one string that is not. (a) aba Ubab (b) **a*b*a (c) (EU a)* (a) (a* Ub*)(a* Ub) Solution

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