EXERCISE 3 Many applications of formal language theory do associate meanings with the strings in a language. Restate each of the following languages by listing its contents: a. (x e (0, 1)* x is a binary representation, without unnecessary leading zeros, of a number less than 10) b. (x e (0, 1, 2, 3, 4, 5, 6,7,8,9*| x is a decimal representation, without unnecessary leading zeros, of a prime number less than 20) c. fx e la, b,., z *l x is a two-letter word in Englishj