Question: a) If L4 and L2 are two regular languages then prove that L1L2 is also regular. 5. b) State Pumping Lemma for the regular languages.

a) If L4 and L2 are two regular languages then prove that L1L2 is also regular. 5. b) State Pumping Lemma for the regular languages. Show that the language L={anb2nn>=1} is not regular

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