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C. Given -{p, q); (a) Write a regular expression for the set: All strings of p's and q's beginning with qq and not having three
C. Given -{p, q); (a) Write a regular expression for the set: "All strings of p's and q's beginning with qq and not having three consecutive P's (b) Describe in English the languages denoted by the following regular expression: (p +q)*q(p+q)* (c) Write a regular expression for the following language: Li(w) w w has exactly a single substring papp or exactly a single substring gpqq or not pq (d) Design an NFA for the following language: L2(w) = {w I w does not contain the substring pqp and ends in qq or in pp} (e) Design an NFA for the reverse of the language Li(w) in (c) above
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