Question: (1) Define a regular expression. (11) Write a regular expression over {={a,b} that generates the following language L={w/w has exactly 2 occurrences of a}. (Note

(1) Define a regular expression. (11) Write a regular expression over

(1) Define a regular expression. (11) Write a regular expression over {={a,b} that generates the following language L={w/w has exactly 2 occurrences of a}. (Note the two occurrences of a can be anywhere in the string) (i) Give four different examples of strings of length six that belong to the above language

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