Question: Q1. part (a) Give a recursive definition for the language S* where S = {aa, b}. and also part (b)- Construct a regular expression defining

Q1. part (a) Give a recursive definition for the language S* where S = {aa, b}. and also part (b)- Construct a regular expression defining the following languages over the alphabet = {a, b}. All words that contain exactly two bs or exactly three bs, not more. please solve these both parts and explain each step. i have asked this question but not get the complete answer.please explain completely.i need explanation with these steps with solution.

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