Question: 14. Let ={a,b}. Write regular expressions for the following sets: (a) All strings in with no more than three a 's. (b) All strings in

14. Let ={a,b}. Write regular expressions for the following sets: (a)

14. Let ={a,b}. Write regular expressions for the following sets: (a) All strings in with no more than three a 's. (b) All strings in with a number of a 's divisible by three

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