Question: Let L be the language generated by the regular expression (a+b)(a+b)* over the alphabet {a, b}. Which of the following statements is true? a) The

Let L be the language generated by the regular expression (a+b)(a+b)* over the alphabet {a, b}. Which of the following statements is true?

a) The pumping length of L is at least 4

b) The pumping length of L is 2

c) The pumping length of L is 1

d) The pumping length of L is 3 The correct answer is b.

But I don't know how to find the correct pumping length of any given regular language. Can you explain me how to find out the pumping length of any given regular language with explanation why a,c & d are false.

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