FOR FREE MATERIALS

Exercise:

 

1. Prove that the language

 

is not regular language by pumping lemma.

 

2. Prove that the language 

 

is not regular language by pumping lemma.

 

3. Prove that the language

 

is not regular language by pumping lemma.

 

4. Prove that the language 

 

is not regular language by pumping lemma.