Determine whether each of the following languages is regular or not regular. If the language is regular ?nd a regular expression for it or ?nd an FA that accepts it. If the language is not regular prove it.

Homework Assignment 9 Additional Problems April 7, 2018 Determine whether each of the following languages is regular or not regular. If the language is regular find a regular expression for it or find an FA that accepts it. If the language is not regular prove it. 1. L = {w E {a,b}* : w = WR} 2. L = {w {a, b, c}* : w = a"bka", for somen, k e N} 3. L = {ww: we {a,b}*}