Question: 1. Write the regular expression for the language: { w {a, b, c}* | w does not contain ab , and, w ends with c,

1. Write the regular expression for the language: { w {a, b, c}* | w does not contain ab , and, w ends with c, and, w has even length }.

2.Prove that it is impossible to construct a DFA to recognize the language : {w | w {a, b}*, and, the number of a is more than the number of b.}.

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