Question: For each of down below, write a regular expression over alphabet {a,b} 1. The words containing ba and ending with bb. 2. The words containing

For each of down below, write a regular expression over alphabet {a,b}
1. The words containing "ba" and ending with "bb".
2. The words containing exactly one "bb"
3.The words containing "ab" and ending with "bb"
4. The words containing at least one "bb"

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