Question: Consider the following language L over Sigma = { a , b } . i ) Give a regular expression for L . ii

Consider the following language L over \Sigma ={a, b}.
i) Give a regular expression for L.
ii) Give a regular grammar for L.
L ={w in \Sigma
: na(w) is divisible by 3 and every a in w is immediately
followed by at least one b}

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