Question: A regular expression for the language over the alphabet {a,b} with each string having an even number of b's is (ababa)a. Use this result to

A regular expression for the language over the alphabet {a,b} with

A regular expression for the language over the alphabet {a,b} with each string having an even number of b's is (ababa)a. Use this result to find regular expressions fol the following languages a. a language over the same alphabet but with each string having odd number of b's. b. a language over the same alphabet but with each string having 4n+1(n>=0) b's. If a regular expression for the language over the alphabet {a,b} with no string containing the substring aa is (b+ab)(+a), then what is the regular expression for the language over the alphabet {a,b,c} with no string containing the substring a

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