Question: Construct a regular expression ( RE ) for all words that have a as the 2 nd letter and b as the 3 rd letter

Construct a regular expression (RE) for all words that have a as the 2nd letter and b as the 3rd letter over ={a, b}, such as aab, babaa, bab, bababa, and aabaabaab. Explain your answer with 3-4 example strings that are either valid or invalid.

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Q:

I need help with Picture 1 Chapter 2, problems 5, 7v. Chapter 2, problem 7i, use mathematical induction, Picture 2 and 3 Problems 2-7, 10, 11, 15, 18 oces without DOD. 5. Consider the language S*,...

Q:

questions 2-6 Question 2 This question has three parts and tests mathematical induction. (b) formulate the applicable induction principle and Give a recursive definition of the set P of all positive...

Q:

Score Formal Languages and Automata COMP 4133 Exam-1 Construct a regular expression defining each of the following languages over th 1. alphabet {a b} All strings that end in a double letter ii) All...

Q:

Please answer Question 2, 3, 4, 5, 6 and 7 Question 2 This question has three parts and tests mathematical induction. (a) Give a recursive definition of the set P of all positive integers greater...

Q:

Please solve both problems 1.Use the discussed translation strategy for constructing an epsilon-NFA from a regular expression as discussed in lecture 3 for the regular expression. letter ( letter |...

Q:

Construct a regular expression defining each of the following languages over the alphabet = {a,b}. a) All words in which a appears tripled, if at all. This means that every clump of a 's contains 3...

Q:

Q 2 ) ( Total 1 5 Points ) Construct a regular expression defining each of the following languages over the alphabet = { a , b } : a ) All strings that end in a double letter. ( 3 Points ) b ) All...

Q:

Construct a regular expression defining each of the following languages over the alphabet = { a b } : a) All words in which a appears tripled, if at all. This means that every clump of a's contains 3...

Q:

Construct a regular expression defining each of the following languages over the alphabet = { a b } : a) All strings that do not end in a double letter. b) All words that contain at least one of the...

Q:

Regular expression of " All the words over { 0 , 1 } that doesn t end with 0 1 1 2 . All the strings in L 1 have the same number of a s and b s . 1 3 . All strings of length

Q:

On January 1, 2010, Ball Co. leases a bulldozer from CAT Co. for 4years at $10,000 per year. The lease payments are due at the end of each year. The useful life of that bulldozer is 5 years. There is...

Q:

HERE COME THE CLOWNS! is the name of a traveling circus. The ledger accounts of the busi- ness at June 30, 2011, are listed here in alphabetical order: Accounts Payable.... $ 26,100 Notes Payable...

Q:

QUESTION 2 You have been appointed to assist the financial manager for the Social Services Department. Your task is to assist in preparation of the 2 0 2 4 annual budget and allocate costs to each...

Q:

Bill and Joe decided to go on vacation together. Bill lives in Boston, and Joe lives in New York. They flip a coin to decide if they will fly from Boston or from New York, and then they flip a coin...

Q:

C Imagine instead that Evelyn is not a native speaker of English, or that is from a different region of the United States and you find her accent difficult to understand. Is it ethical to address...

Q:

1. Does your voice project confidence? Authority?

Q:

5. Does your speech contain words that might pose pronunciation problems for you?