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*********************************** Theory Of Computing **************************************************** 1. Given the language “all even length strings of b’s” a....

*********************************** Theory Of Computing ****************************************************

1. Given the language “all even length strings of b’s”

a. Define this language using the listing method.

b. Define this language using the mathematical notation method.

c. Define this language using the recursive definition.

2. Provide a regular expression for “all even length strings of b’s”.

3. List all words of length 4 in Language((a+b)* a). Also, provide an English description of this language.

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Answer #1

1.a) Listing method
{epsilon, bb, bbbb, bbbbbb, ...}

EXPLANATION: 0, 2, 4, 6, and so on lengths

1.b) Mathematical notation
{(bb)n | n >= 0}


1.c) Recursive definition
epsilon in S
If x is in S, then xbb is also in S

-- One question / 3 sub parts at a time please - T&C of Chegg

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